Okay so for the past couple of months while having sex (any type even masturbation) I find my self unable to breathe. It sometimes gets so bad during I have to stop in the middle. Sometimes it gets worse after I orgasm. It sounds like my lungs are crackling and if I cough or clear my throat there is flem. Now I am over weight however I do not get like that with normal day to day activities such as walking through the grocery store or going up and down steps. It JUST happens during/after an orgasm. Has anyone else experienced this? Help please