I've gotten them before too... I think they're hives or something related. Sometimes they seem to happen for no reason at all, even when my routine has been the same for a long time. It could be the weather or something else not related to what you are using... Other times I've had the same reaction to specific products. How long have you been using the products you mentioned? If they are fairly new, my advice would be to cut back and only use one for a while, then slowly incorporate the others; that way if you still have a bad reaction it'll be easier to pinpoint what's causing it. If you've been using these products for a long time without previous problems, however, I'm not sure exactly what would cause it because that's my problem too!