2 weeks in…Estrogen issues already?

So I started my TRT journey at the beginning of last week. My T was consistently in the low 300s for over a year so I finally pulled the trigger on it. I was prescribed 200mg per week but that seemed high so I’m splitting it into 60mg subq three times a week for 180mg total dose. I just finished my second full week of injections and I just feel exhausted. By like 6pm every evening I just feel like I could fall asleep for the night. Could this be an estrogen issue or just my body adjusting to the meds? No other obvious E symptoms but I have read that fatigue is a common one. Would it be possible to mess with my estrogen this quickly? Any insights are greatly appreciated!