[…] warm and swollen.
[ncbi.nlm.nih.gov]
One morning 3 weeks ago, Regina noticed that both of her knees looked swollen and red, and felt achy and stiff.
[moveforwardpt.com]
As a result, your joints may get red, warm, swollen, and painful. RA affects joints on both sides of the body, such as both hands, both wrists, or both knees.
[webmd.com]