Achy/weak at times, platelets dip low at times (96k at lowest). spleen ok, all other blood work ok. does early cancer or leukemia present like this?

Low platelet count: Idiopathic thrombocytopenia often is an isolated finding of uncertain cause. A platelet count of 96k shouldn't cause any symptoms. A hematologist or rheumatologist can further evaluate and advise you. In my opinion cancer or leukemia is not an issue if your other labs are ok,but it's a good idea to have periodic cbc's performed to track your platelets,red cell and white cell counts.