 [ Symptoms ] could i have congestive heart failure  i have been diagnosed with sinus tachycardia i have had an echocardiogram and everything looked fine i am not on meds for tachycardia i have noticed lately that when i lay down at night i feel smothered and have a weezing when i breath i turn over to sleep on my stomach and i am fine it goes away i google this and everything leads me to congestive heart failure is that possible maybe i have a mild case should not that have been diagnosed from my echo [ Disease ] hi suggest you have a good read through this link from the mayo clinic you may find it interesting <link> just copy link into google to the www to open and read hope you understand it good luck