As salam alaikum
Yes, it's possible. But you cannot be sure that that is the case.
First of all, don't worry or be scared. Everything happens for a reason.
I will list a few things you can do - choose any one (or more) as per your convenience.
Jinn or no jinn, you will inshaAllah, feel a lot better and notice a big difference in your life.
1. Read surah Baqarah daily - you don't have to read it in one sitting. It's mentioned in a sahih hadith that prophet Mohammed:saws1: said that there is a great blessing for whoever reads it and the one who doesn't read is missing out and that the magicians cannot touch that person. There are a lot of stories of people who changed their lives completely by reading surah Baqarah everyday.
Check out this link (if you read Arabic - or translate it and see if it helps):
https://www.hawaaworld.com/%D9%82%D8...D8%A9-1605672/
2. Do istighfaar as much as possible
3. If possible pray at least 2 raka'ah before fajr.
4. Recite ayat al Kursi and the last three surahs (Ikhlaas, Falaq and Naas) as much as possible -
This alone can get rid of your problem if you stick to it.
5. Morning and Evening adhkaar
6. Dua in general
Hope you feel better soon