Assuming you're not being snarky I would strongly recommend talking to a therapist if you feel this way. There are many reasons people have suppressed/muted emotions and a good one will help you find yours.

One example of a cause that's not just 'you might have depression' is 'you might be transgender'. One of the most common experiences of trans women is severely suppressed emotions prior to recognizing their dysphoria and before HRT. Some of my favorite things to read on the internet are stories from trans women about the first time they cried (and then usually cried again because they were so happy about it), the first time they laughed uncontrollably, or the first time they felt passion/anger. Super hartwarming stuff.