Ball not eating

[thejennabird]

Ok, let's take this bit by bit.

The tank I have has a lot of trouble with humidity, and I usually have to mist it multiple times a day. The substrate is the coconut shaving stuff that has the consistency of dirt-Eco Earth Reptile Substrate I think.

Those mesh-top lids let out all the humidity. Do you have the top of your tank covered with tin-foil? If not, you should try following these instructions to improve the humidity. Eco-earth will certainly help! You may also scatter some damp sphagnum moss around to add additional moisture.

He also has problems shedding, and especially has problems with his eyes. One eye, recently, has a blue cloudiness to it(different from pre-shed), and it looks like he scraped it on something hard-what I'm not sure of.

Can you post a picture of what you're talking about? Could be a retained eye cap, could be something else. If you post a picture here people can help you determine how urgent it is you see a vet. Covering the top of the tank and increasing humidity will also help with future sheds.

Also, how long should I wait to feed him again; and what strategies can I use?

Wait at least a week between feeding attemps, and even two weeks would be better.

It's not uncommon for adult BPs to go off food this time of year, but you need to rule out husbandry issues before you can assume that. Outside of the low humidity, what are conditions like in your tank? Hot side, cold side, thermostat, etc.