Hi, Thanks for writing to Health Care Magic, I am Dr Asad Riaz, I have closely read your question and I understand your concerns, I will hereby guide you regarding your health related problem. C.angio have many complication that can be cholesterol embolism, drug(dye)reaction,heamorhage, hematima etc... as u already had IHD caused by atherosclerosis n then afterward u had angioplasty n after 2 days it u having pain in leg .... if u were my patient I would like to ask detail history that is pain comes after activity n need to stop as in case of ch limb ischemia , or it occur just on off even at rest .. do detail exam like palpable distal pulses Dec or absent in limb ischemia, wil listen ur heart n feel pulse is it regur or not Bcs irrigate can through emboli that can cause pain mostly acute but may can cause ch type .. will run some test like ECG to see any abnormality in heart rhythm , echo to look for any thrombus that can cause emboli , and Doppler scan to rule ischemia n then will Tx accordngly ... plavix is blood thiner n is not used for pain relief .. it is give Bcs u had angioplasty n only discontinue with ur cardiologist advice , don t stop or start any medication by urself Bcs some medication may have interaction with med u r taking for IHD n cause serious problems .... I hope this answered your question, if you have more feel free to ask. Regards. Dr.Asad Riaz. General and Family Physician..