Hey Rvb, you'll be fine...
Believe me, NOTHING’s worse than excruciating gas pain from anesthesia after each of my two brain surgeries for two aneurysms back in late '95/96. No, Beano did NOT help!! I never felt so Lady Hindenburg-like in my whole life...
Word of advice, get some gas medicine for recovery.
Brain surgeries are a piece of cake these days. Don't worry!