Problems with libido, mood and sleep

Hi there - I’m looking for some advice on a problem I’ve had for about a year. I’m a married 33 year old female that exercises 4-5x a week, eat fairly healthy and no major health problems. I have a very low libido (non-existent really), mood swings and lots of fatigue during the day. Staying asleep at night is also hard. I wake up 2-3 times a night unless I take a benedryl or something. Any thoughts or ideas of what’s going on with me? I have a doctors appt next month and will discuss with my PCP but I’m feeling really down about everything and embarrassed to talk about it.