Need help

Hey everyone! I just found your sub. I am a light user and have always bought from my local dealer. Over the weekend, I bought a strand called Sunday Pie from a small business. I have only ever bought from an individual. I smoked tonight and am feeling very different than I normally do. I have had racing heart and feeling just odd, not really high. I was hoping you guys could give me some insight on why I may be feeling different. I know I am also feeling anxious from buying from a different place than my regular dealer.