During the 90 day No PMO, you can experience: No libido, depression, hard to achieve erection, mood swings, fatigue, premature ejaculation (during sex when penis starting to get more sensitive) etc. But, it's worth it. I'm 51 days in and I feel that this is the best decision I ever have made.
good luck bro for 90days we are all with ur for next 90 days. ur going to en-courageous by ur 90days journey.