I strongly urge you to consider very carefully the consequences of having surgery in a third world country. Standards of training are not anything like those in Europe, USA, Canada, Oz, etc. Standard of care is much lower. The capability to handle an emergency complication is much less. Lots of things can go terribly wrong.
Regarding carrying 50 bottles of meds with you? That's asking for trouble. No way I'd do that, far too many ways that could be misconstrued.
And carrying thousands in cash? C'mon. Again, asking for trouble.