Thank you for bringing your concern here to PC, Shivani. Welcome to Psych Central. We here on PC cannot offer mental health diagnoses. Plus I'm not a mental health professional. So I'm not going to be able to offer anything regarding what may be behind your difficulty talking. (Perhaps other PC members will have some thoughts they'll wish to share.)

One thing you might do, here on PC, would be to take some of the quizzes & tests that are on offer. There's a link to them in the banner at the top of the page. However here's an additional link as well:

Psychological Quizzes and Tests

Here's a link to an "Ask the Therapist" column, from Psych Central's archives, where the therapist discusses a bit about language disorders & provides links to some relevant websites as well as links to articles on Language Disorder & Expressive Language Disorder:

Difficulty Communicating & Processing Information - Ask the Therapist

Language Disorder

Expressive Language Disorder Symptoms

I hope you find PC to be of benefit.