I feel great but my BMI is still "obese." Should I care about BMI or just focus on how I feel?

Is it normal to feel colder than usual when fasting? I'm always freezing now.

I feel dizzy when I stand up during my fast. Is this dangerous or normal?

Does intermittent fasting affect breast milk supply? I'm still nursing my 8-month-old.

I'm 58 and my metabolism feels like it's completely stopped. Is it too late for fasting to work for me?

I've been fasting for 3 months and feel great but my cholesterol went up. Should I be worried?