I have an amazing coffee machine, so have been drinking more coffee of late. It's one of those push button ones, my sister in law gave it to me as she no longer drinks the stuff. I am having about 3 cups a day. It is helping with 6am starts and getting rid of headaches, so I am going to stick with coffee for now.
Will maybe experiment later with any differences to muscles tension. But it helps the headaches so much, I am not sure it is worth it!