Hi ProudJew95, there's isn't any scientific literature about withdrawal symptoms, as far as I know, but some people have reported it.
Here are excerpts from various books/programs that describe how it seems to feel for some people:
Withdrawal symptoms can catch you by surprise. Common symptoms include: irritability, anxiety or even panic, unaccustomed tears, restlessness, lethargy, headaches, brain fog, depression, mood swings, desire to isolate, muscle tightness, insomnia, and severe cravings to use porn. For some people, sporadic withdrawal symptoms can continue for months. Talk about your feelings with a supportive person who is knowledgeable about the porn addiction cycle. Most often this person will be a fellow [GYE]] member, a twelve-step sponsor or a therapist. Close friends not in recovery and family members can also be helpful. (Based on Wilson, Gary. Your Brain on Porn & Weiss, Robert, Sex Addiction 101)
In the Fortify program, they write:
Prepare for withdrawal symptoms. Like turbulence on a plane, just wait for it to end. Don’t panic. Life will soon become very sweet. Prepare for a renewed overwhelming desire for porn, 2-3 weeks after stopping. Thoughts that you really desire porn can hijack you. Find something that you love more than porn, and attach yourself to it very strongly. Discouragement after a setback can kill the battle, instead remain calm. Don’t judge. Learn a lesson. Update your plan. Talk it over with someone, and get back up. Accountability - Open up to others.
Here is more from Weiss:
Do Sex Addicts Experience Withdrawal? It is common knowledge that alcoholics and drug addicts, when they suddenly go “cold turkey,” often experience withdrawal, things like: delirium tremens (the DTs), chills, fevers, insomnia, night sweats, headaches, nausea, diarrhea, tachycardia (elevated heart rate), hypertension, depression, agitation, anxiety, hallucinations, irritability, and the like. Withdrawal from some substances is worse than withdrawal from others. Opiate addiction (including addiction to heroin) and alcoholism tend to produce the worst physical symptoms. Sometimes these symptoms can actually be life-threatening if not medically managed.1 Typically, substance addicts dealing with severe physical withdrawal symptoms are “titrated” off their drug of choice, meaning they are given a medication that “manages” their withdrawal by temporarily replacing their addictive drug of choice, and then they are slowly but steadily weaned off of that medication. Usually this process takes anywhere from a few days to a few weeks. But what about sexual addiction.
Do sex addicts get the DTs and hallucinate the same as alcoholics and heroin addicts? Typically they do not. This does not, however, mean that a sudden stoppage of addictive sexual fantasy and activity does not produce withdrawal. In fact, it nearly always does to some degree. Most often withdrawal from sexual addiction manifests as one or more of the following:
√ IRRITABILITY, ANXIETY, AGITATION, DEPRESSION, etc.: Most sex addicts experience extreme emotional discomfort in early sobriety. And why not? After all, addictive sexuality has been their primary way of coping with any and all discomfort—including feelings as seemingly benign as boredom—for years on end. When the addiction is taken away, they no longer have this easy means of numbing out and escaping. And without that, they must face their emotions head-on. For people who’ve been trying to “not feel” for years or even decades, this can be an incredibly uncomfortable experience both for them and those around them.
√ A DESIRE TO EXPLORE OTHER POTENTIAL ADDICTIONS: Many sex addicts new to recovery find themselves replacing (or longing to replace) their sexual addiction with some other compulsive (and highly distracting) activity. Sometimes this manifests as a cross-addiction. For instance, a sex addict who suddenly stops acting out experiences a corresponding flood of uncomfortable emotions (as discussed above), and without compulsive sexuality to stem the tide, he or she may turn to drinking, drugging, smoking, eating, gambling, spending, or any other pleasurable substance or behavior. Knowing this, it is incredibly important that recovering sex addicts keep a watchful eye on other pleasure inducing behaviors, especially in the first few months of the recovery process.
√ LONELINESS AND LONGING FOR CONNECTION: For most sex addicts, sexual acting out masks not only day-to-day stress and emotional discomfort, but underlying issues related to a longing for intimacy. Without the constant distraction of sexual fantasy and activity, this longer-term condition can rise to the surface and cause intense feelings of loneliness, fear, isolation, and unhappiness. These feelings are perfectly normal and to be expected. After all, sex addicts are grieving the loss of their primary long-term relationship (their addiction), and they naturally feel a need to replace it.