I remember having worst morning sickness in my 7-12 weeks pregnancy. I would be woken up early in the morning just to vomit. Everything i eat and drink, i will vomit. Most importantly dont forget to hydrate yourself and take your folic acid. Eat small portion does help abit. Take something cold. My morning sickness stop after i recover from covid at 12 weeks pregnancy up till now so far so good. If you have heartbun and vomiting most probably the heartburn is the caused. I started vomiting, diarrhea and heartburn few months later. Go gp ask for antacid (something like gaviscon but its safe for pregnancy). It works very well everytime i had heartburn.
it’s normal to be tired in first trimester. it can be very miserable. eat and drink whatever you possibly can.. must give nutrients
Natalie