Yesterday morning I put on my normal lush deodorant, and it really stung! So I washed it off, noticed my armpits were a lot darker than normal. thought nothing of it and then tried again today, and the same thing happened. So I washed it off, used normal roll on and that stung as well. Washed that off and put on an impulse spray and that seems ok. Is this a preggo thing? or should I go see my doctor about it?