I'm glad you're trying the process of elimination to see where the problems are coming from. That's all we can really do where vaping is concerned. You said it best, we as vapers have to dr. ourselves. We are the guinea pigs of vaping since it is in it's infancy and we'll be the one's to set the numbers on the stats when it's all said and done. I wish you and your wife the very best and do keep us posted! Your information may help others.