I've only had my 901's for a week now, but this morning received a USB passthrough. I've been vaping constantly and I'm thinking that the passthrough won't make it better, hah.
I haven't seen alot of posts as far as health concerns go. Anyone wanna help me with these questions?
1) What are symptoms of nicotine overdose?
2) Are there any calories in vapor?
3) Does this thing affect my lung strength? (I'm in several sports and hope that my lungs will be as good as pre-smoking after using this for awhile)
4) Anyone ever notice long term side effects of vaping? I couldn't find much information about PG and any info is appreciated.
5....last one, promise) Will inhaling vapor cause health problems? Constant water vapor to the lungs can't be too good.
With all that said, I freaking love this thing. I've got RY4, mint, and marlboro in high strength and enjoy a mix of mint and marlboro or mint and RY4. Or mint alone

.
At the very least, if it turns out this thing has some drawbacks, I'll be better off cause I'm saving money. I've thought about it, and worst case scenario is propylene glycol is terrible for me over long-term. And this thing tastes damn good.