It's not just the smoking that causes all those things. It's nicotine. Throw the e cig away and just quit. After a few days, almost all nic is out of your system and within 3 weeks all trace chemicals are too and you can start healing. Also for every pack you don't smoke, put the money in a jar and save it for a treat for yourself - something you woudl not normally buy. I was a few days shy of my 35th bday when I quit and I never looked back. I recommend the following website:
www.whyquit.com