Sorry to hear that!
Bismuth is the devil for me too. You're not alone! I'm STUCK with my LM, I lost the receipt!
What I saw from using this was first few days "wow, my skin glows...coverage is so nice!"
next week or so its "hmm....looking crepey-and grey. where'd the glow go?"
next next week "shit, i look older, more clogged pores, and more zits! WTF"
Try diorskin pure light. I've been using it daily and it is SOOOO light and the coverage is sheer/medium. No weird skin reactions at all and most importantly, my pores are clear.