2nd Pregnancy In 5 Months

I'm 37 and we're trying to have our 2nd child. The eldest is 5. I miscarried late spring and am now 6 weeks pregnant. I desperately want to be excited but I don't want to get my hopes up. Losing our last baby was one of the most emotionally challenging things I've ever endured. I'm just...scared.

Also, I didn't have any pregnancy related illness with my first child. Not the case with this pregnancy! I am nauseous, gasy, tired, hot, crampy and dizzy. ENT Doctor diagnosed me with vertigo today & suggested I get a blood work-up done.

I really don't want to go to the GYN until I've passed 8 weeks. This is when I miscarried.

Am I shooting myself in the foot?