Unable to hold food down 20 wks pregnant

As seen in the title I’m currently 20 wks, and I thought by now I’d be able to eat and hold some food down, maybe even have some pregnancy cravings, but it’s been the complete opposite, I don’t crave anything at all and I have extremely bad food aversions. I have talked to my OB about this and all that I was told was that it’s normal and to try my best to eat as much as I can, they prescribed me nausea medication which I took for about 4-5 days, and they didn’t help, so I just stopped because i read about all the possible side effects. I can barely ever hold down my prenatal vitamins or any sort food or drinks😭😭 I Just want to be able to eat again and I feel so bad because i feel like my baby doesn’t get the right amount of anything