@Ben idk this doesnt sound normal im new to
vaping too i went straight to 60watts DL and 3mg nic as my first
device never felt any of that but then again everyone is different,id say try a diff bottle
juice and see ,was the bottle sealed when u got it and it says 0nic
If it not sealed even tho it says 0 their could be a nic shot in there..
To much nic gives those feelings u explained,but yeah my first device i went straight to subohm and felt fine