If a male has had excessive estrogen levels (hormone imbalance) during puberty till early 20s thus less testosterone effect on body, is it possible to re-start penile growth again when levels get corrected with medicine such as aromatase inhibitors?

Age 22 your growth has been competed and hormone treatment will not make your penis bigger. Incidentally, most men want to be bigger, even though the average size of the erect penis is about 5 inches. (12.7 cm). You may wish to consult a counsellor to address the emotional issues. Wish you good health!

Minimal changes in size occur with hormones on the penis at that age. In all likelyhood you are normal if other parameters are male. get checked by a Urologist.