I'm so sorry to read that you have been so ill. It sounds incredibly distressing for you. I hope you will feel better soon.
Maybe just finding out about the surgery option would be a good idea, at least it will be a choice you can make once you have all the facts.
With regards to telling them 'I can't mentally keep up with this', perhaps it's not a bad idea to tell them what a detrimental effect these bouts of illness are having on your mental health. The physical and the mental health are intertwined after all.
Thinking of you and wishing you well. xx
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