Hi, my husband had a. L5 S1 fusion 5 weeks ago and is on pandol for pain relief. 48 hrs ago he began to experience esteem dizziness lying and sitting. No other problems. No headache, no ear ache, good bp, normal pulse. Normal BSL, eating and drinking well. No chest pain, no tingling or numbness anywhere. Do you have any idea what it is from? Thank you, Sally