20, male. No pleasure just discomfort and numb during masturbation/ejaculation. Dont cum much. Brain damage? Also have low T. and ED. Used to feel good

Get seen. First, make sure that nothing physical is going on, like a hormonal imbalance. If an exam and appropriate testing by your doc is all normal, then there are other reasons for low libido too. Stop alcohol and all recreational drug use (if using). Eat properly, exercise and consider being evaluated for possible depression or anxiety by a qualified psychologist or psychiatrist.