I need advice from y'all !

So this is my first pregnancy and I'm only 8 weeks but get this, I'm having mad foodadversions, consistent nausea and stomach discomfort. I literally have to force myself to eat sometimes because I know I have to at least get something in my stomach for my child's sake. What did you ladies do to help these symptoms and what products do you recommend? Oh this also might be tmi but I have constipation for a couple of days and then diarrhea for the next. What's going on ?? lol I'm a military wife and I'm a long ways away from all my family and friends so I only have Glow/nurture to go to! I would appreciate it gals. Thanks in ahead of time !