You can still do the relaxation breathing, some yoga perhaps--but your hands (I knit for this and other things))-----could you find a craft? collage? making boxes? draw? paint? fly paper airplanes? ---I get silly but,,,,clay? carve? Is music helpful?
It helps me to have my hands busy also, and if I want to drift Music from The Hearts of Space or, oddly maybe, blues.
garden? (out or in, ...)----write.
This must be a frustrating time for you. Sorry. & hugs.