Hi I Have Problem With My Right Eye, I Can;t

Hi
I have problem with my right eye, I can;t open it in the morning when I wake up or in the middle of night. any time after sleep. It takes time to open it and I have feeling something is in my eye. It feels dry in eye too. I went to to doctor two month ago, they checked and could not find anything. They recommended eye drops, I tried for two month , but it did not help. Could you please give any recommendation? I am 53 years old.Thank you, Inga