Oh don't worry dear, this is extremely common in the first trimester. Your hormones are changing like crazy so the body reacts like this. Keep some dry biscuits near your bed and have one before getting up, it really helps to settle the tummy.
My pregnancy tracker app showed that this happens because of the sudden rise in hCG and progesterone levels. It usually peaks around week 9 and then starts dropping. Try tracking your daily triggers to see which smell makes it worse.
It is just your body adjusting to the tiny baby growing inside. For me, sipping warm ginger tea or sniffing a fresh lemon helped a lot. Try eating small meals throughout the day instead of forcing yourself to eat full plates.
Try chewing some saunf or dry ginger candies when u feel sick, it really works. But if you are vomiting too much and not even able to keep water down, please call your gynac immediately. Extreme dehydration is not good for baby.
Honestly, I had terrible nausea till week 14 and thought something was wrong with me. Did you girls also feel like vomiting every time you smelt tadka in the kitchen? Thankfully it got better for me in the second trimester, hope yours settles soon too.