Morning Sickness

Am in my 1st Trimester now, morning sickness is occurring daily. Thankfully I've not vomitted but the feeling is awful. Loads of food is a turn off to me. My appetite is bad. Can't eat much too. Alot of food doesn't attract me. But I'm still trying to eat as much as I can. Headache is often too. I try to drink as much water as possible. What did you do when you had morning sickness? Any natural things to aid instead of medication? I was told by my mum and mil not to take anything sour. So I'm in very much a dilemma when I feel the nausea