I have been having some on and off stomach discomfort along not having an appetite and nausea. Also in the beginning of it I was really shaky. Along with that, the past couple times I have had sex with my boyfriend it hurts in a certain spot he hits. This hasn’t happened before and I’m concerned that there is something wrong. I do want to mention that I have the birth control implant in my arm. I’m not fully sure what to do and if something is wrong or it’s just in my head.