34 is amazing !
A move is just stressful on parrots. Any added stress can always allow health issues to rear up.
Veterinarian check is a good idea with weakness and bottom.of cage sleep.
Xtra warmth is always beneficial, radiant heat is best. I love the sweeter heater it's top notch , but a k and h cage warner will also help some.
Support/supplement feed..sometimes while they are still eating they aren't eating enough..baby bird formula is complete nutrients and Kaytee brand lists pro biotic as well. I've found adults prefer made thicker like Greek yogurt thickness, abd still served very warm. May take from you finger or a dish or mixed in something like oatmeal.
My quaker rescues age is unknown. But my veterinarian feels past 20. I keep my heater on her all the time now and give a comfort support feed of baby burd formula every day or every other day. She does take more naps th ese days. But her check up was healthy its just age