Urticaria/Hives

I’ve been pinning MT-2 for about a week and a half and didn’t have any problems at first. I was nauseous the first time (250mcg) but not after that just experienced normal flushing. Recently, i’ve been having bumps pop up all over like hives - it looks like urticaria. I’m not sure if MT-2 is causing it, but i didn’t pin yesterday but throughout the day today have had the most hives pop up. Has anyone else experienced this - I’m going to stop MT-2 for now but am unsure whether it’s actually causing it or some other allergic reaction and I’m worried reading some of the reactions people have had to it.