What Could Be Problem I Was Diagnosed Of Gynecomastia ?

Question : I am 5.8 high and I weigh 74 kg of age 24. I always been slim and skinny all my childhood, 3 years back I was diagnosed of Gynecomastia and since then i had developed fat over my abdomen area, thighs, butt and chest but other parts of my body still remain skinny though. I don't drink alcohol nor smoke nor been on any drugs all my life. I look under grown and small compared to people of my age. Recently when I got an MRI of my abdomen, it came out that I had 17 cm of fatty liver. I turned from underweight to overweight in the last two years.
The major problem which I am facing is daydreaming and not able to concentrate. I just imagine some imaginary situations in my mind and gets diverted of work or daily activities I do. Physically I am doing somethings but mentally i am thinking of something else. I could hardly concentrate for 2 mins. I tried going to gym do some kind of physical exercise but even then i am still day dreaming and getting tired easily while working out. I had these issues since my childhood on a very small scale but from past 6 months it's been aggravating. What could be problem?

My testosterone and prolactine levels were normal. I started observing gynecomastia and then tummy fat and belly fat two years back, I don't eat large quantities either and I added 14% body fat from last two years. I feel week, less energetic, depressed. I am really struggling to concentrate and memory is taking a toll.

Doctor What is thyroid function? I believe the thyroid results were also available on the documents attached.