Orgasm

So I've been with my boyfriend for 4 years now and we have a lot of sex... I really enjoyed it but the problem is that every time I orgasm it's just the weirdest unpleasant feeling ever.. Like before that it's amazing and I really enjoy it.. but when I finish I just have a headache and my mood goes down. So because of that, I really try not to finish so I can stay in the mood but it really annoys me.

Am I the only one who has this feeling? 😫