Hi kittycat,the more you can get into your body,ie water,food ect will help.
Also there are few antihistamines that may help with anxiety ect,make sure you not allergic first though,as i gave someone that info and it hurt more than helped,so be super careful.
Immodium will be good for you too i expect.
Exersise is also very helpful,however be careful because of your back problems.
You can DO this you really can!
Stay strong!!
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