Two times now in two weeks I have had sudden, severe, swelling in the left side of my bottom lip and another time in the right side of my upper lip. Now, about three days after the last incident my foot, between my big toe joint and ball is swelling rapidly. I have no idea what this could be and I'm getting worried. Note* both times my lip swelled I hadn't eatin anything I don't normally eat and hadn't changed anything I've always done.