I am 22 years old, male. Lately, I have been having a feeling that my prostate (or something in the area) is enlarged. I notice this the most when sitting down, or even lying down. I have recently had urine tests done, all which have come back negative. I know that I have external hemorrhoids, so I am wondering if what I am feeling is an internal hemorrhoid. I have had slight difficulty urinating, as well as difficulty keeping an erection (usually not a problem). Sometimes I have a full bladder feeling, even after I have recently gone. A spasming in my perineum area is common. I have pain in my urethra, NOT during urination but usually while sitting around. Is it possible for a hemorrhoid to affect the prostate? Thanks for any help.