You still didn't answer my question.

What kind of reassurance are you looking for?

Reassurance of what?

What would you do differently as you go on with your life if the bump was damaging versus if it was not damaging?

That answer might help you decide that these bumps do not matter because they do not change anything.

The way you write tells me you struggle seriously with anxiety. You need to get help with those thought processes.

Did you know anxiety is the number 2 factor in serious complications from Covid? Right behind heart disease. Anxiety seriously interferes with the immune system because it draws so much energy from the body.

Anxiety is also a leading predictor of developing long term symptoms from a concussion.

You may have low serotonin and norepinephrine levels. That can be resolved. with meds or natural supplements.
The headache you suffered can be related to depleted norepinephrine from the physical and emotional trauma of the attack.

The meds have side-effects that are not usually common to the natural supplements.

Google 'naturally increase serotonin and epinephrine'