Need a consultation from the doctors.

I have had condrolysis of ankle since Childhood. Recently in Nov ,2024 I was diagnosed with Ankylosing Spondylitis was put on medication but instead of helping me from pain it started showing side effects like stomach ache, vomiting and constipation/diarrhea. So the doctor suggested to stop the medicines. Now my dr might be planning for biologics. So I would like to know from the experts Do biologics are safe and what are the pros and cons of taking it? And how can I lead a normal life, Can you help me out please doctors'? If required I can share my medical documents through email. The current scenario is I can't Walk much because previously I had multiple surgeries on my right ankle and there is pain all over my body joints especially on my back. And I do feel eyes irritation at times Please help me doctors.