Sleepless nights

Vivian
Ok so I'm 9 weeks and 6 days prego and can't seem to sleep at night let alone HORRIFIC nausea and vomiting😷😷😷 . My doctor recommended Diclegis and its supposed to make my  nausea go away and make me sleepy but I get the worst headache EVER... I was told Benadryl is great for a sleep aid, any advice ladies?