Does anyone else end up with flu during a bad flare up?

It may be that the viral infection caused your flare, not the other way round. Are you sure it's 'flu, or do you have a heavy cold? The two are often confused, but if you feel very unwell with severe headache, high fever, nausea and aching limbs, then you ought to let your doctor know as it's important to ensure you don't have meningitis, and possibly to give you some Tamiflu - which is an antiviral agent.

I hope you feel better soon.

Moffy x