Hi:
All I can contribute is to say that in the 22 years of my experience with hyperacusis, nothing else, the origin of it is not psychological, at least in my case. It is physical: noise trauma. But day to day stresses can exacerbate the basic discomforts, but not much. Again, I speak only for myself.
Your ear crackling does not sound like H. Do you sense sounds as bothersome? If so, you probably have H. If you are not sure, do not talke any chances by going in any really loud situations until you you know FOR SURE!
Today, for example, I am having a very stressful day, and my increased H and T are due to phone use, that is clear. There might just be a bit due to worry.
Take care.We are rooting for you.
Marco