Heart Failure. Now not??

After having a 2nd echo w/ contrast send Jan this year. Around 2nd week I think Mr Cardiologist office, not him, called me to tell me I was in HF!! Start Entresto 2 pills 1 am 1 pm first week then add Carvedilol nd week 1 am and 1 pm. Hit me like a brick had problem w/Entresto. Said stop it and only take 2 Carvedilol. Bothered me . SE said take 1 at night. Meantime he DX me w/ high cholesterol in April 2023 took 5mg Rosuvastatin M-W-F. He originally wanted me on 20mg everyday. I weigh 87lbs. FYI have bad Neuropathy. So shortly after finding out I have Heart Failure (I am 64 had AML Leukemia tx with Bone Marrow Transplant in 1981, chemo, etc Breast Cancer 2007 Double Mastectomy 2008 silicone implants were placed, they ruptured and leaked and were removed 2015. So he tells me something about Mitral Valve Prolapse. End up in ER Hospital 3/2-3/5 thinking I am having heart attack or a stroke. End up bk in RR 5/4-5/14.
Many tests. Turns out my Ejection fracture is 60%!!! Eight weeks ago it was 35%!! NO Heart Failure!!! How Ann this be. I had even stopped taking not only the Carvidilol but also the Rosuvastatin. I had read that Statins can worsen symptoms in people with Neuropathy and in my case looking back after stating it my symptoms went down hill. So back to this Hospital stay, my left Carotid Artery is now 75% blocked! Eight weeks ago it was 50%. They want me to take Plavix 75mg and test again in 6 months!! They say 1-3% chance I could stroke on table. Yes I could also stroke at home in 2 weeks at this rate. Thoughts. Mind Blowing. I think. My first Cardiologist dropped the ball personally. He could not even call me himself or make an appointment to tell me about the so called Heart Failure. SMH. 🤦‍♀️