###Human: Due to excess intake of vitamin D and calcium, I feel weak, dizzy, and tingling. Please help. ###Assistant: Hi. In your attached Hb electrophoresis report (attachment removed to protect patient identity), abnormal hemoglobin is not present. So you are not having any abnormal hemoglobinopathy. Your main complaint is weakness, dizziness, and tingling. So anemia, B12 deficiency, thyroid issue, liver disease, renal disease, vitamin D deficiency and peripheral neuropathy should be ruled out. I suggest you investigate with serum B12 estimation, CBC (complete blood count), serum TSH (thyroid-stimulating hormone) estimation, SGPT (serum glutamic pyruvic transaminase), SGOT (serum glutamic oxaloacetic transaminase), serum urea and creatinine estimation for further work up. To rule out peripheral neuropathy, your neurological physical examination should be done. According to cause specific treatment can be given. I suggest you rule out diabetes as well by random blood sugar estimation. Meanwhile, you can be prescribed Riconia forte like multivitamin tablet for your problem.