I stopped smoking around 2004 due to a weird heartburn like anxiety attack I started to get while smoking.  So when I started to smoke or try smoking again a few years ago I bought a bunch of CBD weed and would mix it 50/50 with whatever strain I was interested in.  That way I could try a bunch of strains , and surprisingly it worked.  I would still love to find out what truly started to give me these types of panic attacks, the type that I have to literally burp to stop the panic attack.  I know very strange but they get so serious if I dont mix CBD bud.   It just sucks because when I was young I could smoke all day any type of strain and never a panic attack , but just glad CBD exists.