Hi musallam, those are lots of tests and in them the abnormality that I detect is that there is generalised lymphadenopathy
with leucocytosis and lymphocytosis
meaning that there are more than normal number of enlarged lymph nodes and the white cell component of the blood is increased with a particular increase in the lymphocye component. Also thyroid having a solid nodule is not a good sign. You need to get an FNAC or fine needle aspiration cytology of the lymph nodes and the thyroid nodule
as it will guide us to the cause. It may be nothing or it could be indicative of something more serious which will be decided only after these tests are done and there reports. Your father's condition is not something which can be overlooked and I strongly suggest you to go ahead and get him thoroughly investigated for the underlying cause. Take care!