I've got 2 factors for you to check out. Check the Ph of your soil. It should be anywhere from 5.5 to 7.0. Personally, I adjust my ph down with lemon or pineapple juice. It works wonders! The other factor I urge you to check on it how hot that pot is getting. During the heat of the day, put your hand on the pot. If the pot feels hot, IT IS! I have had this be a problem with my plants. I have wrapped old coffee sacks or cardboard around the pot itself to block the sun from hitting it. Great Banana plant by the way!

hmmm... I've go no clue... I'll ask about it over at bananas.org http://www.bananas.org/showthread.php?p=266026#post266026

Thanks guys! I made the hole in the bottom a little bit bigger and I have to admit when I felt the soil it through the bottom was kind of muddy. I always heard that bananas were heavy feeders and I thought that meant that they need a lot of water but now I find out it's fertilizer that they need a lot of ( I think) Apr-Sept they get direct sunlight between 10 and 3 and filter light ( through surrounding trees) about four hours before and four hours after that. They have to spend 6 to 7 months indoors the rest of the year.

It doesn't necessarily appear to be sick. To me, it almost looks like it's putting out variegated leaves, which some pepper varieties do, like Candy Cane: https://bonnieplants.com/product/candy-cane-pepper/