I had a stupid idea to tie a rubber band around my penis shaft and testicles for the last 2-3 minutes of masturbating. I took it off promptly after ejaculation because I realized how stupid it had been. This was abt 3 days ago, and I had never done anything like this before. I'm not in any pain, there's no bruise or swelling (there is a small mark where the band was, but it hasn't grown, changed color, etc., and I'm pretty sure it's fading), and no trouble urinating. However, I feel like when I get erect now, my penis stays more on my testicles than before, where it had pretty much been freestanding. I've been massaging it to increase blood flow and have been steadily taking aspirin to prevent a blood clot, but I'm still growing somewhat worried, as per the erection issue. Can anyone give me some advice?