I have CHF, shortness of breath, etc., unable to take too many steps. Was hospitalized on life support 2 yrs. ago and was in a care facility for physical and respiratory therapy; recently, have been short of breath regardless of being on oxygen and have recently developed swollen left foot/ankle. Also, appetite has decreased. Home BP, unlike in dr s ofc., has been on the high side: 136/93. Please advise. Thank you.