Hello! Welcome and thank you for asking on HCM! I understand your concern and would explain that your symptoms seem to be related to a viral infection. What is the dose of levetiracetam that you are taking? What is your body temperature? Do you have fevers? I recommend consulting with your GP for a careful physical examination, a resting ECG, an abdominal ultrasound, a stool analysis and some blood lab tests: -complete blood count -PCR, sedimentation rate -blood electrolytes -kidney and liver function tests -blood bacterial culture. You should discuss with your doctor on the above mentioned issues. Hope to have been helpful! Best wishes! Dr. Iliri