Well I am glad to report that I am almost completely on 0mg juice. I still take a vape or 2 in the morning of my 3mg juice. The reason I am telling you this is that a strange thing happened after going to 0mg from only 3mg. My cardiologist had to reduce my BP meds to 1/2. That should tell people something. I was on 20mg a day of lisinopril. My BP was not really bad but because of my aortic valve replacement leaking so bad he wanted to keep the pressure on my valve as low as possible. My BP was running 125/45 with 20mg lisinopril and after 0mg nicotine it went to 108/45 now with 10mg lisinopril it is 120/45. So if you don't believe a little nicotine doesn't make a difference you are wrong. I still vape a lot but now it is for the flavor and it has become my hobby not my obsession. It took a while but 0mg is not that bad. If you can go to 3mg for a while you can easily go to 0mg. If I can do it after smoking 45years over a pack a day anyone can do it.
I guess I should also tell my story. I am a very active 45 year old. I coach Muay Thai, I train in Brazilian Jiu Jitsu, I've fought MMA (Smokers), and till lately, used to ride 200 miles a week on my road bike. I started smoking at 13. All the way to about 90 days ago. About a pack to pack and half a day. Then I had a heart attack. I was in the middle of sparring, taking my training partners back and sinking in a choke. BAM! Heart attack. Almost died on the mats that day. Ambulance came, got carted out to a hospital, then air lifted to another. I had a 95 percent blockage, the widow maker. I now have a stent. Quitting smoking was easy the first 30 days, the 2nd month, not so much. The urges were terrible. I was starting to sneak smokes left and right. I had a long drive and I knew there was a really good chance that I would smoke full time again. So I went on r/ECR and read up. I ordered a MVP2, and got some liquid 12mg. It's been about a month now, no urges. Don't even think about it. My Brother passed away a few weeks ago of a Heart Attack, and while there for his funeral, found out my Niece smoked. By this time I already started buying gear, owned aside the MVP, a VTR, and SVD. I gave her my MVP, two aero tanks, and a lot of juice. She's now quit as well.
I'm also on lisinopril, as well as effient, a statin, and baby aspirin. My dose of lisinopril is half yours, at 10mgs. My morning BP hovers around 96/55. During the day, it's around 110/60. This is with vaping. I don't see a difference in BP whether I haven't vaped in an hour, or just vaped five minutes ago. I have an appt with my cardiologist next week. We'll see what he says about the subject. I'm not arguing whether vaping is good or bad for you, btw. Just stating my stats.
Smokers have an addictive personality. As I'm now with vaping. I'm on 6mgs now, soon I'll be on 3mgs. I've already ordered a ton of juice from MBV. And through this, I've gotten the bug for clouds. I now own 3 mechs, and rebuildables. I can make a .3ohm dual coil in my sleep with all the practice lately. But still use kayfuns on my daily driver, a 20w mod. I think as was touched on earlier, we do not know the long term effects of Vaping, it may still be harmful. However, nowhere as harmful as smoking. Harm reduction is the buzz term being bandied around. However, I will be on 0mg, and after that, quit. I wish you luck in your journey.