Injected winstrol (or any injectable) is still porcessed through the liver at least once. Methylated compounds like Winstrol, whether Oral or Injectable, are passed through the liver twice.
CBC, Complete Metabolic Panel & PSA are standard tests for any blood draw in the US. All three were very likely performed whether you were aware of them or not.
There are several problems with using the gel bro. Get off of it, have your doctor switch you to an injectable stat! Gel aromatizes...