Nausea gone with vitamin B6?

So I’m 6w4d today and have been nauseous since 4w3d. I was at my wits end and called my doctor for advice. She said to try B6 and Unisom so I went out and bought them, and took 20 mg of B6 in the form of a morning sickness candy leaving Target. By the time I got home, I felt 100% better. I went to the grocery store and cooked dinner for the first time in 2 weeks. I didn’t even need the Unisom. Yesterday I woke up less nauseous than usual but still not great, so I took another B6 candy, and felt instantly better. Today I woke up and I feel: normal. Like myself. Like not pregnant. I feel well rested, have zero nausea, and while my boobs still hurt, they seem less painful than before, enough so that I was able to run today for the first time since the symptoms kicked in. Obviously now I’m stressing out worried that something is wrong. I initially had cramps early that ended around 5w3d but never any spotting. Has anyone had their symptoms go away completely this early and everything been ok? Our first scan is Tuesday so I’ll know more then but it’s going to be a long wait until then thinking something is wrong. Thank you!