Mast cell activation syndrome is a condition that causes mast cells to release an inappropriate amount of chemicals that causes allergy symptoms.

Thiamine overdose symptoms are unlikely to occur because this vitamin will be excreted in urine when consumed in excess. Vitamin B1 deficiency, on the other hand, can be a lot more harmful.

Liver pain often feels like aches around your abdomen or back, especially in the upper right side. Common causes are hepatitis, cirrhosis, and more.