I'm the same way with compliments, and will literally call bs on someone if they compliment me and I don't feel like it's genuine. I believe mine is from growing up hearing people around me call me fat, ugly, etc and not having my mom say she loves me so I don't feel like I'm those things if that makes sense. I don't blame it all on that, but definitely trying to work on my self esteem and accept when someone who knows me compliments me and say thank you. My t tells me to argue with myself about the beliefs about compliments about myself.