Hi Yuly! I’m so glad you reached out to us. Your toddler needs a full developmental evaluation. This would include not only hearing, but speech and language, physical and neurological development. Each state provides this service free of cost and without a referral from a physician. Google: Early Intervention and the state in which you live.
Here are a couple Bundoo articles that might help as you seek the help he needs.
Best of luck and let us know how else we can help!
Baby sign language is also really helpful until his language catches up. I would start with a few highly motivating signs (“eat” for example).