Prescription medication

I take prescription medication for chronic pain from pancreatitis. I have had two Whipple surgeries within two months to remove a non cancerous tumor. Lost 1/3 of my pancreas, currently take maximum of 10 mg oxycodone daily. Have crossover hydromorphone, 4mg, as needed.

Very bad PTSD from multiple surgeries and have insomnia

Can I safely take a cannabis gummy that will help with my sleep? I do no want to feel high, just would like to get a good night’s sleep