Physical Damage?

Hello everyone! This is my first actual post on NoFap! I've been browsing the forums for a while after Googling my symptoms, and decided to make an account on here.

I've been pretty worried for quite a while about my condition. From what I've read on NoFap so far, my symptoms seem to be virtually identical to those of an otherwise physically healthy male who is suffering from PIED, but I am scared there may be some physical damage. I have pretty severe ED, with no morning wood.

Some background:

A few years back, I was heavily into PMO. I never used a rough grip or anything, but I did MO often, both with P and simply using my imagination (applying P fantasies to women I knew from university/work, etc.). I've been shy all my life and never able to succeed with women. Since I couldn't get a real girlfriend, and have never had sex, I wanted to emulate real sex as much as possible. So I purchased a couple of FleshLights. I'm sort of large girth-wise, so for me, the toys were extremely tight around my penis!

After using the Fleshlight for a few days, I noticed my penis sensitivity was drastically reduced. For quite a while, my penis just felt like a useless piece of rubber. This was years ago, and to this day I still have issues becoming erect even when using my hand. My libido and sensitivity are both low as well, so when I MO I hardly get any pleasure out of it. All of this happened after I MO'ed with the Fleshlight. I've never had issues like this when MO-ing before.

I plan to get examined by a urologist. But I'm wondering if anyone has had a similar experience like this? It's been going on for years, and I previously could not see a doctor for it. Is it possible for an extremely tight squeeze around a penis to permanently damage it? I'm just really scared I may have damaged my blood vessels or sprung a venous leak or something. I don't want to be permanently ruined. Has anyone ever recovered from something like this? I mean, lots of men use FleshLights, so I can't be the only one who has experienced this.

I've cut out all MO and P, and I think I'm at around 43 days. I have a girlfriend now so I'm doing the normal mode. I've had sex with her a few times, with mixed results. The first couple of times I could not get erect. So I went to my GP, he prescribed me a pack of Viagara. The pills did help a bit, and after finishing the entire pack I've noticed that I can sometimes get hard with my girlfriend without needing a pill, which is good news. But my erections are very weak, probably 65-75% of the way hard. They are firm enough to penetrate, which is good, but it is easy for me to lose it during intercourse. I also have delayed ejaculation, at least in the standard missionary position. When we have had sex in other positions that resemble the P I used to watch, I was able to O rather quickly, so I'm hoping this issue of mine is just psychological.

After being totally free of PMO for 43 days, I sometimes (though rarely) wake up with an erection. But I'm still not getting morning wood very often, and I can't get erect on command like I used to be able to. I seem to only be able to successfully get 75% of the way hard if I have not orgasmed in a few days. My sensitivity has somewhat improved, but I still can barely feel soft sensations like a vagina or mouth.

This is causing me a great deal of emotional distress, which no doubt is contributing to the problem. Can anyone shed some light on this?