I have a question 😩

So for about 2 months I've been feeling like I have something stuck in my throat and I was told it was acid reflux/ heartburn but I don't feel any burning at all . I just feel like I have a lump in my throat which is very hard for me to eat it makes me nauseous 😷 I don't know what it is but it won't go away & it's making me sick ! It's hard for me to sleep , I barely sleep . I have to sit in a chair in order for me to K.O ! I don't know what to do 😭😭😭 any suggestions?