Nausea has turned to heartburn!

Emily • Married for over 2 years, TTC for over 1 year, 2 previous MMC, expecting my rainbow baby Sept. 2016! 💕
I'm 7w4d and my nausea has seemed to be replaced by heartburn. Everything I eat gives me heartburn but I'm still having some queasy episodes as well. Yesterday, I was fine one minute and projectile vomitted the next but I think that had to do more with heartburn. Anyone else?