Very possible, I've noticed some loss of sensitivity in my penis ( I'm 63 ) but sex is as much mental as physical and my wife's sex drive doesn't exist these days compared to the first 30 years of our marriage. She's had numerous health issues and suffers from depression and anxiety and the meds she takes have hammered her sex drive. When we do have sex, vaginal penetration has became painful for her so we mostly do oral, we used to do anal fairly often and still do ( once in a great while ) but if I feel she's not into it or it's painful for her....then I can't really enjoy it either..
For me, it seems to have become more sensitive, at least as I'm about to cum and while releasing my load. It's like a nerve radiating thru my body causing me to twitch and tremble. I can't keep it in his mouth once I cum. Two of my FBs experience the same thing to the point I have to grab on to them to keep their cock in my mouth while I'm swallowing their load. I have to wait a little while before I can take their cock back in my mouth. And even then, I need to be very gentle. They do so say I give an excellent blowjob, so maybe it's just with me. But, it doesn't take much with me receiving to have sensitivity issues.
I'm 66, and my cock's definitely less sensitive. It's difficult to get and remain hard, and ejaculating sometimes seems like more trouble than it's worth.
I can still get hard easily enough ( I'm almost 64 ) but I do tend to lose my erection quicker and as my cock softens, the sensitivity of it drops which really affects my ability to cum
Let me be the first to say “I’m no doctor”. That said, I believe some changes are just part of the aging process. At 72 My wife and I still have a vibrant sex life together and with others. The couples we play understand and know that I am a once and done man. I also last much longer, so it is a win win for satisfying the women. The point here is accepting the small changes but remain sexually active. I have sex to satisfy my partner, if I don’t cum on occasions it’s fine with me.
I'm not sure, I have low testosterone that I take shots for and that helps, but it only goes so far..
I never understood why T would make a difference in sensitivity. I mean, does that mean women have lower sensitivity than men?
Going back to the thread question, did you discuss this with your doctor? This might be a symptom of heart failure or something else that is very serious