I had rented a mattress a week back, dried it out in the sun from morn till noon and started using it right after that. 3 days later, I found a small red spot on my left foot. It didn’t hurt or itch too much and looked more like a pimple and started fading after 2 days. Then another boil sort of thing popped up next to it and that faded away too. Now, I have found a similar spot on my lower back and on my tummy. They itch, but very little but they do not hurt at all. I am worried if they are bites caused by bed bugs. I change my bed sheets every week but I still feel it could be bed bugs since the mattress is rented. I did a thorough check up of the mattress as well, but couldn’t find any bugs on it. Is it really there or is it all in my mind? Someone with bed bug experience please help me out!!!