Curupira, sorry you are in so much pain!

I work our 5-6 days a week with yoga or yoga like exercises and if I am not able to do them, I feel the tension.
If you tolerate plain yogurt, try some a spoonful and see how you tolerate it without pain or discomfort. Not sure what is causing your pain. If you tolerate the plain yogurt, then try increasing every couple hours to a larger amount up to a normal 8 oz serving. This can make the tummy feel better if any of what you are going through is related to the digestive track.
Thanks for sharing your challenge and keep us updated.