nexplanon and weight loss

so I know this is bad but I'm trying at least. so ever since I got the nexplanon I've been okay until recently (only had it for 2 weeks) this has been going on for a week. I get nauseous one day that I gag with any food or weird smells then the next day I'm totally fine. but it's gotten me into the habit of eating awful I barely eat cause I'm scared of throwing up. yesterday I cooked some little sausages rolled up in tortillas I at like 3 of them then for dinner I ate like 10 cauliflower and 10 carrots. Idk I feel hungry but I'm scared. I've been drinking a lot of water to make up for the food but I know it's not enough. has anyone ever had this with nexplanon what did you do to stop it?