I am a long time sufferer of HA and have been doing OK lately just a few flare ups in the last month or so. I am not on any meds and I am a 40 yr old male in decent shape. I have a long history of aches and pains and twitching but this is stronger. I woke up the other day and my upper back on the right side right where the neck and back meet was really sore like I had slept on it wrong. Now several days later it is still intermittantly very painful depending on how I am sitting and how I place my arm. I have pain down into my tricep and shoulder. My tricep is twitching like crazy and my right thumb is twitching too. My grip feels weak on that side also. I am not freaking out yet as I keep telling myself that this is a pinched nerve or something like that will work itself out but I can't help but think this is nuero disease, a brain tumor or a tumor in my neck. Does anyone have any experience with these types of symptoms? I could really use some help here.