Hello for the last 7 months I have been experiencing constipation, my bowels are narrower than usual and at times I will have periods of diarrhea, in the last 3 months I also developed a skin rash on my stomach that spread to my arms and now to my thighs, it is not itchy at all, the skin rash seems to have healed more on my arms but my wrists and thighs are still covered with it, it is some kind of a dry skin rash and appears white on my skin since I'm of dark skin.I am worried and any help/advice could help