I have not had any issues when eating shrimp, it's something we eat pretty regularly. I've had no side effects related to food while taking Calquence for my CLL. Maybe you have developed a shellfish allergy unrelated to your condition? I hope it gets better!

What is the reason that they can no longer eat it?

Were the shrimp devained? I have talked with a couple of people who can no longer eat seafood since they began treatment.

I have not had any issues with any food