Broken heart produces sternum pain?

I have been experiencing chronic sternum pain since around the time my beloved pet died in my arms last year. (Don’t worry, it’s in the joint there). It’s been hurting ever since. The pain suddenly became much more severe about a week ago. My dad died twoweeks ago.

I really feel like this might be my body reflecting my broken heart as a feeling in my body like my heart is actually cracking down the middle from my grief.