Would low potassium cause more than just a cramp/charlie horse in one leg? on nexoum for 8 days and on lisinopril 10mg n hctz (hydrochlorothiazide) 12.5. should i worry ?

Horse,: Yes. You are taking a diuretic so take some potassium carefully because you are akso on lisinopril.

get potassium measur: Low potassium doesn't cause muscle cramps - it can cause tetany and, in extremely low levels, it can cause muscle weakness (called "periodic paralysis"). I suggest you have your potassium measured and then supplement it if it's low. Low potassium is a common cause of cardiac arrhythmias.