Dizziness, fever, aches and congestion. Treated for bronchitis. Low lung pressure. Have hypertension, hip replaced

I, ve Just Been discharged from the hospital after a 7 day admission for sufferring with flu like symptons,dizzeness mostly upon standing,fever (low grade),aches and pains, chronic congestion , diaginozed as bronchitis (lt lung) blood pleasure dropping to as low as 89/45. medical procedures perfomed ---- MRI , CT, SCAN WITH AND DYE CHEST X-RAY. MY MEDICAL IS QUIT EXTENSIVE , 1 cabg,8 caediac stents,( 1 DONE WITHE LAST SEVEN MONTHS),HIGH BLOOD PREASURE (CONTROLLED) , LEFT KNEE REPLACED, RT HIP REPLACED AND FIVE LOWER BACK SURGERIES