The first thing that pops in my head is that you are getting enough water. How much do you drink a day?

This sounds like a liver detox glitch to me. Sometimes due to lack of certain minerals, vitamins, or enzymes, one or more of the liver's detoxification pathways can be less than optimum in its/their performance. This can lead to certain substances not being dealt with effectively.
Another possibility is that the kidney is not detoxing effectivley. Either way detox is key. Lightening the total load or body burdon is paramount. This can be done through diet, liver, colon, parasite, candida and kidney cleansing. As Southern Belle already stated, drinking lots of pure water is a must.

If things don't get better after these protocols then I would suggest a CDSA and liver detox test from a lab like Great Smokies. This will help determine where the problem lies and how to best support it.

Good luck

Have you done a colon and/or parasite cleanse? Thats always a good place to start...
It would be helpful to change your eating- while doing flushes to expedite the cleaning process.
Try Dr. Cabot's eight-week diet (a book) The plan is very easy to follow and has lots of menu options including if you have allergies. The plan helps the liver to not be overtaxed from food.

Monica

Have you read what Dr. Clark said in her book "the Cure For All Disease" about ammonia.
The body can not produce it. It is produced by bacteria.
Is the ammonia smell also coming from your urine?
Read what Ornithine and Arginine will do for the ammonia.
I like to think of ammonia as parasite urine.

Superman, think of Ornithine and Arginine as kryptonite against ammonia. It might be worth a try and the stuff is not very expensive.

yes superman, this has happened to me. I know what you feel like. You usually get used to your own smell, but then this different smells comes out. I used to just smell my cloths because it wigged me out, it just didn't smell like me. At one time I would just take a deep breathe and I could feel the ammonia in my nostrils with a slight burn, this had nothing to do with me sweating.
I just got used to it, then one day after playing hoops, I noticed that I sweat less and that I did not have that ammonia smell anymore.
I have no idea if it was because I was doing parasite cleanse and the little buggers were dying, or that I did all the other cleanses and that fixed the problem, but it just fixed itself and went away. I've seen that all the weight lifting products usually have the ornithine and arginine in there anyway, so take some of those and see if it helps. LIke any natural healing, don't expect results right away, be patient and don't get frustrated