My Stomach Bloated Up All Of A Sudden And My

My stomach bloated up all of a sudden and my skin broke out in I think hives. My bowel movements changed from going once a day to taking Miralax and stil not going. I went to GNC and bought a detox kit and proceed to try it for 6 days. It did alittle to change bowel movements, but my legs started to swell. I am quiting the detox today. I do not know what is causing my bloated stomach from my breasts to my lower abs. I do not know if I have hives again or it is ezemca ?