My Father was diagnosed with covid and lung infection..he was admitted on 1st May and treated there and then discharged on 16 may ..at hospital blood thinner s were given by injection and at time of discharge d diamer was 3.6 as it should be 0.5 and blood thinner was given .now after 15 -20 days in home d diamer is 4.4 and crp and ldh are normal and oxygen saturation is normal. And weakness is less as it was at discharge..but why d diamer fluctuates ..blood thinner is continuing...plz elaborate my query completely