I Have Lost About 15 Pounds Due To A T.I.A

I have lost about 15 pounds due to a T.I.A condition. I eat a healthy diet. Nevertheless it's very hard for me to regain my pounds lost. What do you recommend me to do to regain my body weight?
They have told me take cortisol tablets and adrenal hormone tablets. Are they good and safe for my case? I don't have the money now Can I send you a check later?