Whole body randomly started itching like crazy. no rash. not a reaction bc im not allergic to anything nor have i had anything new. so uncomfortable!!

There's a first: ...time for everything including allergic reactions. Just because you don't have a history of allergic reactions doesn't mean you aren't having one now. The first line treatment for mild allergic reactions is an antihistamine. If you get hives, swelling of the facial area, difficulty swallowing or breathing, or jaundice (yellowing of eyeballs or skin) please get medical care ASAP.