9dpo, symptoms?

Becca.
Hey, 9dpo and AF due in another 4days. But I feel dreadful, vomitting/feeling sick, boobs in so much pain, insomnia but NEED to nap during day which I've never done, smells making me gag, am not under any stress or out like that. 16th cycle and never had any of this before leading to af. When would be best to test? Has anybody had these before? ️Xx