[iskry]

My understanding of MSM is that it contributes towards cell regeneration. What gains you receive will remain, but once you stop, cell regeneration will depend on the quality of your dietary intake. Essentially you are what you eat.

I'm not aware of collagen supplements increasing the risk for blood clots. If anything it should strengthen the inner walls of the veins if they are weakened for any reason. If you have any concerns of embolisms or thrombosis, speak with your doctor. I haven't hears of anything regarding bubbling in veins before unless it is to do with embolisms or clots, the symptoms of which are accompanied by sharp pain and swelling. And if you are worried about clots, contact your doctor immediately with your concerns. This may be the result of a hereditary problem.

I should mention that we all have our personal health issues. I too occasionally experience bubbling sensations through my body at times. These are muscles spasms, and then I also get the occasional cramp. The human body is not without its flaws.

Once again, I must reiterate that you should go and visit a medical doctor about your health complaints. Hereditary issues arise at any age and for your peace of mind as well as overall all well being, go get checked out by a physician. Self diagnosis and uninformed self treatments can make your health worse, or aggregate a pre-existing condition.