12 weeks & EXHAUSTED

I'm almost out of the first trimester(I can literally taste the second trimester lol) and I have high expectations that my second will be a lot easier. For the past two weeks I've had what seems to be an additional boost of energy & no sickness. All of a sudden last night I wasn't able to get comfortable to sleep, woke up throwing up (continued throughout the day), and lastly I'm just EXTREMELY exhausted (like I could've fallen asleep at work). So exhausted I don't even have the energy to eat. Anyone else experiencing this?? If so how are dealing with it! HELP PLEASE😢😪