There is a difference between suffering a new concussion and just causing a relapse of symptoms. Plus, anxiety can cause a relapse of symptoms. I don't think any of the 'impacts' you mentioned are likely to cause a concussion. But, they can cause anxiety and stress that can cause symptoms to return.

You will be better off if you accept that these are not concussions. If you have an impact that causes that immediate dazed and confused feeling, that would be a concussion. If you do not have that feeling, please try to not get anxious. Anxiety can be your worst enemy. Keep in mind that these events can cause a startle to your system with resulting symptoms. That startle can cause an involuntary anxiety reaction. Recognizing this startle reaction will help you say to yourself, "This will pass. Take a deep breath and try to relax."