Thinking of cancelling my surgery tomorrow

I've had a really hard few months. Finding out my dad's dying, selling and buying houses, an absolutely terrible flu, my period 7 days early (never happened before) and then gastro.

I'm so run down and exhausted. My body is clearly quite inflamed, bad body acne and retaining lots of water.

Yesterday my knee was hurting and now it's all swollen up and I can't walk on it. Last night I got a severe allergic reaction around my eyes.

I feel so overwhelmed, I feel like I can't breathe. On the verge of absolute panic. I had chronic fatigue for 5 years and have been recovered for 3 years. My CFS was triggered by a surgery, I had the surgery after a long period of extreme stress.

I'm also autistic and have ADHD, so my ability to self regulate and cope is always pretty low.

I don't know if I should go ahead or not tomorrow. My anxiety is through the roof and I genuinely can't calm myself down.

I've been wanting this for so long, but wondering if my body is trying to tell me it's not in a good place for a massive surgery

EDIT

I'm going ahead with the surgery. Thanks for everyone's experiences and advice. I need a MRI on my knee, but the doctor said it can wait ❤️