falling asleep receiving oral sex

i have been in lesbian relationships most of my life including a failed marriage with a woman. we separated and i moved to a new state and while here i was with 3 girls including the girl i am currently with. i have fallin asleep giving oral but never the other way around. i am a pretty strict top but in this relationship its pretty mutual. my drive is not nearly as high as it usually is. i am currently taking meds for cholesterol and hb and neuropathy. i dont know if its me or the meds or if it her. its pleasurable but i am not able to achieve orgasm very easily, i am used to self help including during my 7 year marriage.