Nausea and headaches with Clomid??

Hey guys. I took Clomid 50mg on March 4th-8th. This was my 6th round so far. Day after my first pill this round, I started feeling nauseous and getting headaches. It has been continuous since day 2 of this Clomid cycle. Like I said, this was my 6th round, and I haven’t had these symptoms with past rounds. Just the usual hot flashes and mood swings. I’ve even been on 125mg one round and I never had nausea or headaches. Is this normal? Anyone else experience this before??