Ejaculate after refraining for 30 days...something not very normal

Hi, I started refraining from masturbation a month ago. The reason why was because my penis muscle has pain during masturbation, and someone suggest me to refrain from masturbation for 2 months.

I un/semi consciously masturbate last night(without ejaculation) and this morning, I feel my prostate is so full to the point that I feel it is going to explode. I'm afraid that it may do more harm than good if I don't ejaculate. Therefore I decide to ejaculate today.

The good thing is that my penis doesn't hurt anymore during masturbation. I guess refraining from masturbation for 30 days does help healing my penis muscle afterall. (Although I didn't make it for 2 months)

However, couple of unusual things I notice that's different from before and I"m not sure if it is normal or not. -There is no pre-cum before I reach orgasm.(I normally have pre-cum before) --I was worrying that my sperm may dried up inside and block me from ejaculate!?!?! -At last, Ejaculation was intense, to the point that it is slightly painful toward the end. -My sperm is VERY yellow. (No foul smell)

From here on, I don't know what to do, I'm not sure if the above symptom is normal or not. Should I continue my "nofap" life? My only concern is that after so long without masturbation, I'm afraid there may be any sperm-dried-up blockage inside and ejaculation may damaged the prostate or ejaculatory track? (FYI, I know nothing about penis biology)