Are you having anxiety from vaping or "about" vaping? If you are jumpy due to vaping you might be using a mg strength that's too high. Most newbies, myself included, tend to go for a high mg strength and then find they need to cut it down with VG. I buy PG liquid then but it down using 50% eliquid,10% distilled water, and 40% VG.
If it's anxiety towards vaping in general, just think about the crap you put into your system with analogs then compare it to vaping - if still worried, my doctor recommends ecigs and keeps them in his office for the patients he is trying to help quit with analogs...the juice in the prefilled carts he gives out has PG liquid in it. Just figure if it's good enough for the medical community it's good enough for me!