@mtnmarge Hi, Very interesting! I was also looking at drugs my wife is taking at found even CBD could interfere with the drugs she takes ability to do their job. I think the rule of thumb is anything that you can't take grapefruit with may react the same way with CBD. I always thought this was mumbo jumbo for years, but it appears valid. I've been having shortness of breath or what feels like my heart is pounding, I am a shallow breather, but this all is concerning me now. I hate seeing the doctor, it seems like I can figure it out faster than they can. I agree a doctor is trying to help you, they don't always. I just hate going and hearing oh you're ok, when I don't feel OK! It is frustrating, what insurance will pay for or won't. I often chalk it up to being over 60, physical trauma from operations. I can't tell if I'm having muscle, heart, lungs, or some other issues. All of them quit during an ICU event and survived on machines for while. Hospital said there were no severe long term effects from it. I don't believe any that. Good news is they saved my life, I 'm still here 13 years later. I need to follow up on this thing! Deep breaths seems to make it better.