Apparently, my urologist says I can no longer take creatine as he thinks that what the cause of my two bouts of kidney stones. I've not taken creatine since November, and my arms are noticeably smaller. I am guessing that is due to the lack of additional water in my cells. Is there anything else I can do to build more mass in my arms w/o the creatine? I'm pushing the weight, but arms have not gone back to pre-kidney stone levels.