My body went through so many changes that it's hard to say what is normal if there even is a normal! You have to remember that stress can cause problems and a lot of worrying can cause un warrented stress. Take it easy. I went through a stage where my bowel movements were loose and that didn't seem to concern my doctor at all, he just said I needed more fiber and lots of fluids. His main concern was dehydration. My breasts have gone through so many changes, tender, absolutely painful, numb, normal, changes in color, size fluctuations etc. That is all "normal" from what I was told. If you are really concerned call your practitioner, since you are a high risk pregnancy having had a miscarrage, I am sure s/he will understand your concern, but I would say you are just pregnant and "enjoying" the territory that comes with it! Congrats and good luck!