Hyperthyroidism sex help low libido

Patient: My girlfriend of three yrs and i just started living together for about 5 months and she has hyperthyroidism. she gets irritable and tired easy and has a very low libido. works all the time also.i on the other handhave a very high libido and need sex very often. more than twice a wkid like to have sex every other day but it isnt happening, what can i do any meds she can take i dont wanna lose a relationship w her over this