Anemia question

Patient: I had a large wound on my leg and shortly after that My Hemologab level dropped from a 5 year steady reading of 15.5 to a low of 7.7. I have had all the tests looking for a blood leak and finding none. By my choice I have a blood test weekly and finally after 4 months it has started rising by about .6 every week to a present 13.9. My questions are this. Is there any potential harm to me by taking a test every week and secondly I am about to restart Plavix soon. I had been off it for my tests. Will restarting Plavix have any type of effect on my weekly tests.ThanksBob Winters