Flare up from flu?

I finally felt I had totally recovered from my costo bout a few weeks ago coming on a month but I’ve had what I’m pretty sure is the flu start today and the chest pain has begun again… It’s stressful because my heart rate has also been elevated which is apparently normal for the flu, but that with my familiar chest pain which is mostly on the left side coming back is concerning.

It is sore to the touch specifically, it doesn’t really feel like it’s IN my chest, it’s a painful to the touch feeling on my left clavicle and lower left ribs most of all. Some pain in my left shoulder..

I’m trying to be calm as I’ve dealt with this all before and I seemed to figure out it wasn’t my heart- but it’s annoying it’s come back suddenly!

Can costocondritis be caused by the flu?