gaining over 20 kg on tziparmil help

I have been taking celexa for about 2 years for anxiety attacks from post trauma all my life I had an athletic build and I weighed 175 lbs since I started taking celexa I have been feeling much better and I went back to almost normal but I gained ober 45 lbs I dont eat to much I would even say that I eat healthy but I feel really bad with how I am it is hard for me to do stuff because of this weight is there any solution I tried hiking 2 miles on the hills for 1 month 5 days a week and lost maybe 3 lbs. please help me!

לנאו שלום, לצערי אין פתרון טוב, כנראה מדובר על בעיה בחילוף החומרים כך שגם פעילות ספורטיבית רבה וגם דיאטה עוזרים מעט לירידה במשקל. אבל אלו הדרכים היחידות לרדת במשקל. שיהיה רק טוב דר' גיורא הידש