Weird question, I know. But I'm curious.. Whenever my SO & I have sex, if I climax, I immediately get so tired! It's kind of humorous. I basically just lie down on top of him for a second while he still wants to keep going & he's like, "umm.. Hello?". After that, I dry up! It even starts to hurt me a little when we keep going so I just tell him to hurry up & finish. I think it's my body saying, "okay, done with that!" Does anything like this happen to anyone else?