need more info. is it starting on the oldest leaves first? if so, then its probably overwatering or poor drainage.

think it started at the top (newest leaves) and worked its way donw, but can't besure. i found it really strange about the leaf drop, the plant didn't even wait until the leaves dried out, they were still green and plump. I've never had a problem growing pepers before, this is just so odd!

Are the spots small, like fly poop?

There is a fly spec fungus, noteably in apple and hibiscus.

The leaves kinda dry up and drop of the plant while still green?

Sprinkling some food grade corn meal on the soil, worked for me (The Other choice was spraying out side at 20F)

probably bacterial spot

Keith