What Is The Cause Of Blood Thinness And Cardiac Comlication When On Lipitor?

i have afib and take warwarfin 2.5 -3.75. i am being treated for bronchial issue, lots of coughing. started out w/ flu symptoms, stiffness, aches, and then turned to coughing, intermittant shortness of breath and wheezing. no fever..i have been prescribed ventolin hfa 90mg, methylpredsolone 4mg, 21 tabs (6, 5, 4 etc), and amox tr-k cvl 875 125 mg tabs 2 per day x 10. i also take lipitor 10 mg and metropol tartrate 50 mg x 1 1/2 tabs 2 per day. i am 67 and have consistent 2 - 3 therapuetic scores. concern is each of these new meds i will be taking have major issues with warwarfin therapy, dangerous elevated blood thinness and cardiac complications. i was going to the coumadin clinic on thursday to check on the effect meds have had on levels but out of fear i haven t begun taking any of these. 3 at one time seems like too much. maybe 1 at a time? which one? i am hoping now it will clear up on its own. it hasn t gotten any worse and at times i think its been better..ps i love my dr of 21 years and i am happy with my heart dr. i called today and was told there shouldn t be a problem.. it seems however, that the abuterol, the steroids and the antibiotics are problems for the afib patient. can you tell me what you think i should do? thank you