On the basis of your sign and symptom - obesity is the main reason behind your all problem.
You should loose some weight.
So you should change your life style-
Take sufficient amount of water per day.
Take less spicy and fatty food.
Take less intake of food so your body will lose weight in a regular way.
Don't do intense exercise.
Next Steps
You can do and you can achieve whatever you want but for that you should first make decision that you will loose some weight .
if you decide you can do it.
if you don't loose weight then take consultation from a doctor to make correct diagnosis .
Health Tips
Keep positive attitude to fight any disease and any problem.