A balance problem is an issue that arises when the amount of money in a bank account is insufficient to cover the cost of a transaction. The two crossword solutions for this term are 'OVERDRAFT' and 'VERTIGO'. An OVERDRAFT is when a person withdraws more money from their bank account than they have available, resulting in a negative balance. VERTIGO is a medical condition characterized by dizziness, lightheadedness, and a feeling of spinning or swaying. It can be caused by a balance problem in the inner ear.