Strange stomach symptoms advice

Hi All,
I'm new here and been struggling for a little while with weird stomach issues. Please read and any advice would be appreciated.

So I have several issues at the same time. For example, I'm fine leaving work but as soon as I get in my car and drive home I get smack down stopping nausia with burping. As Soon as I get home it magically disappears.

Also at times during the day Im fine but within 3 minutes in so nauseous I can't move or do anything. It's like I need food now. As soon as I eat it goes away.

Also at times I get nauseous and as soon as I eat some crackers it goes away. Sometimes I take Tums, drink ginger ale and ginger water and they help with varrying levels of success. Whatever I have is taking over my life. My car and office and home all have cough drops, a 6 pack of ginger ale, ground ginger, water bottles, Tums etc.

Any thoughts??? Thank you!!
Oh I'm also deathly afraid of vomiting and gagging.

Hi Thank you for the reply. No it doesn't just happen when I'm sitting in the car. But I have noticed that the leaving work and the drive home is a trouble time because I'll be fine prior to the ride and after the ride but just not during it.