Body types should not have an impact on electrolyte blood levels. Your level is only slightly out of range, and since it is chronic, you are somewhat acclimated to it. If you are not on diuretics, your losses are likely due to diarrhea. I would increase your daily loperamide dose and take it every day, not on an “as needed” basis. You can take up to 8 per day. If you get constipated, increase your fluids and fiber and possibly reduce the loperamide. If you are concerned, call your doctor about a potassium supplement. As an alternative, try using salt substitute, which contains potassium chloride. Your kidneys are supposed to retain potassium when your levels run low. If you have not had kidney function labs done, you should (BUN, creatinine).
Jan 