One method I use when I am focused too much on my physical symptoms: I practice accepting them. I close my eyes and take some slow, deep breaths. I stop resisting the pain. I let it be there. I remind myself that I'm not in danger and my pain is a signal that I'm stressed, not that I'm injured. I rest my awareness on the pain until I find that pain isn't actually so horrible. Then it usually goes away, or stops mattering to me. The trick is that I have to let go of the expectation that the pain should leave. I gently encourage myself to just let pain be there, and be ok. I repeat this many times a day until it becomes a reflex. It's definitely not easy-- I don't say that to be discouraging, but to let you know not to beat yourself up if it's hard. (I learned this from "Hope and Help for your Nerves" by
Claire Weekes. It's a bit dated but I still recommend it because her methods for working with anxiety and pain symptoms are great.)