Not In The Mood Unless I Masturbate

Hey all! I’m trying to figure out what’s going on... with this year being so stressful and nothing seeming to be going right I’ve been having the worst sex life because I haven’t been in the mood. Obviously my partner is and he respects that Most of the time I’m not in the mood but I want to have sex with him I just feel like crap. (Yes I have depression but I’m on meds for it but they’ve never caused issues before.) The only way I actually feel like getting in the mood is when I masturbate and even then I’m not that horny. Does anyone know what could be happening?