This is the best picture I could get. He wouldn't hold still.

Housing
What size is your tank? 1.5 gallon
What temperature is your tank? averages 76 degrees
Does your tank have a filter? No
Does your tank have an air stone or other type of aeration? No
Is your tank heated? Yes
What tank mates does your betta fish live with? None
Food
What type of food do you feed your betta fish? small betta pellets
How often do you feed your betta fish? 3 pellets every day or every other day
Maintenance
How often do you perform a water change? Almost daily
What percentage of the water do you change when you perform a water change? 100%
What type of additives do you add to the water when you perform a water change? Water conditioner for tap water
Water Parameters:
Have you tested your water? If so, what are the following parameters?
Ammonia:
Nitrite:
Nitrate:
pH:
Hardness:
Alkalinity:
Symptoms and Treatment
How has your betta fish's appearance changed? His stomach is stretched and white and bloated
How has your betta fish's behavior changed? He is tired and weak. Can't swim down without a crap ton of effort and floats right back up. And his right side is more bloated
When did you start noticing the symptoms? a week and a half ago
Have you started treating your fish? If so, how? Epsom salt treatment, no effect
Does your fish have any history of being ill? He's been bloated before but never this bad
How old is your fish (approximately)? I've had him 6 months.