hey guys, so i'm 29 yr old male. just got my testosterone serum levels back which were 485ng/dl. the PA said this was normal range but i feel tired, drained all the time, have low motivation and have been like this for the past 3 months or so. she did say my tsh was border line high (4.080) but my t3 (36), and t4 (9.1) were good. is that low test for a 29 year old?