What you are going through is really terrible. I'm sorry. You could look into using a penis health creme every day. Man1 Man Oil is a good one and can help with your sensitivity issues. I like it because it has all natural ingredients and actually works. Good luck.
I sympathize with your situation. I too have experienced a loss of sensation in the glans. it is 'global' during masturbation or with penetrative sex. and it started 15 years ago - after a short course of Propecia. There is no orgasm - its more like a reflex. I can *** instantly, or take forever. There is no longer any hypersensitivity after ejacualtion. I too have tried hormones, and had the reflex tested. even and MRI on my spine. all to no avail.. basically the propecia robbed me of a lifetime of sexual pleasure!
Thats true,RichTea165. I got the same problem in my penis too. Doctors, they seems ignoring for the prob we had. Its been years for the problem I need help too.
I am having similar issues to ninja250, and have been for the past four years. I attribute my loss of sensation to mild paraphimosis, during an episode of mastrubation. This lead to the blood flow in the glans becoming restricted, and consequently damaging the nerve endings there - permenantly. My sensory loss is not as servere as ninja250's, but I can most definately sympathize with him on a level that most people cannot. Medical professionals are mostly not interested in helping with concerns like this. Infact I immediately got referred to a sexual phyciatric clinic to ''talk about'' my problems, and the doctor who referred me was not interetsed, infact quite callous and insensitive, making out like its all in my head. It is not a phychological problem, it is very much a physical problem.
I am in the process of researching, and finding out if there is more that I can do to help myself find a better solution. I'm in the process of trying creams and lotions in the hope that something may encourage the sensation to improve. Diet and exercise can make very minor improvements, not to the sensation, but to the force of orgasm and general vigour of erections.
Lastly, I highly doubt that you will be able to medicate the problem away, and that you are convinced it is not you. Shatter that preconception.
BTW, if you do start working out, do be patient - nature moves slowly. 3 months to start seeing results if you work out every day.
I think your problem is less your physical condition and more your diet and psychological factors. Your long history of dealing with this issue will only drive you feeling insecure and the resulting psychological stress from past experiences will cause insecurity and loss of libido. You may also be under false pretenses over what is "normal". Everyone's different, man.
As for the ejaculation being clumpy, don't worry about that too much. What I do think is happening is you are not drinking enough water, especially if your urine is dark. Humans need 2.5 liters of water a day to function normally. Most do not drink this much so we have a lot of health problems as a result and our blood and body chemicstry is more acidic than what it should be. So, start drinking more water. Start working out and staying in shape. Do eat healthy foods and a balanced diet based on the University of Michigan's food pyramid, NOT the USDA's.
In fact, I recommend getting stronger and building up your muscle mass, since if you have been to all these doctors and they have all said that your body is OK, it must be OK. DO ditch the medicines and DO masturbate naturally, with lubricants and toys if necessary. That doesn't matter. What does is your self-confidence. You're a man! Work out, feel good, start getting muscles and attracting stares from the ladies. It will help your confidence. Sure helped my self esteem. And I noticed after losing weight that my libido increased as well.
Of course I'm only assuming you are the average American, which is to say, overweight. If not, then simply ignore the above advice about working out.
And, I hate to break it to you, but the level of sensitivity of the tip of men varies greatly. Your lack of sensation is not particularly worrying. Heck I have very little feeling on the very tip through to about 1/4 down the tip. I don't worry about it, it's not like a guy will have sensation all the way up to the tip (some may, but I'm willing to bet most don't). I'm almost 100% certain you are fine.
Lastly, your skin may be sensitive to the clothes you are wearing to bed / out and about. I had to throw away some boxers I got because the linen itched and caused the tip of my penis to hurt. Why do some clothing manufacturers assume we all have 8" flaccid wangs? Most do not. So, for the rest of us, our tips get irritated by the creases in the linen RIGHT where our manhood is. SO, try different clothing, too, and not sleeping naked.