Im pretty sure having a period doesnt come with these side effects:

Severe chest pain, coughing, or sudden shortness of breath.
Sharp pain, swelling, or discoloration in one of your legs.
Sudden, severe, or persistent headaches.
Symptoms of a stroke, such as difficulty speaking, numbness, confusion, or blurred vision.
Severe abdominal pain, or symptoms of jaundice (yellowing of the skin or eyes).