They all sound fine except conversing can be tough if there are too many people talking, especially if they end up try to talk over each other. A two way conversation should be fine.

You could get a book on card tricks and try to learn slight of hand card tricks.

I would limit the computer to ten minutes at a time.

Does the 2 hours of activity 30 minutes of rest formula sound like a good one? Or should I be more conservative at first?

I've felt worse the past few days than I have since the concussion, certainly worse in terms of variety of headaches, and I feel I'm less able to concentrate, and the ringing in the ears is a totally new symptom. Is it possible to have setbacks worse than the initial injury? Or could this be a cumulative effect of head bumps, my last one being the straw that broke the camels back? Or side effects of the amitriptyline? Or just the stress from travel and an emotional week last week?

I've been keeping my anxiety somewhat reined in (I think because I'm just exhausted from worrying). I'm sure it's an interplay of all of these, and I'm starting to be OK with not knowing, but part of me still really wants to know why!

Your increase in symptoms are NOT from an accumulation of head bumps. That question has been asked and answered over and over.

You need to learn to gauge your activity. There is no formula of 2 hours activity, 30 minutes rest. Each activity has its own stress level. If you notice a spacy feeling, stop and take a break. If you are reading and need to reread a line, stop and take a break.

I believe your struggles are from how you deal with stress and possibly increase stress by trying to understand every little symptom. You need to get your anxiety under control.

There are NO worthwhile answers to your why questions. Over time, you might start to notice trends. 2 hours of reading could set you back. Or, participating in a multi-person conversation may cause a crash. Only you can connect the dots. Find something simple to occupy your mind with.

You need to find some somewhat sedentary activities. What would you be doing if you broke you leg badly and needed to be sedentary for a month ?

Learn to play a musical instrument like the guitar or something. Learning to play guitar chords and pick at the strings could occupy lots of time. Or. learn to tie fishing flies. There are lots of activities that are just manual based with no need to be out and about.

Thanks for the response, I'd likely be reading for a month if I broke my leg. I've been trying to pick up simple activities, although sometimes learning them exacerbates headaches (today for example I got a watercolor kit in the mail and exacerbated a headache trying to figure it all out!).

I've seen you recommend l-tryptophan and l-theanine for anxiety and depression - do you know if these are safe to take while taking amitryptiline?

They should not be a problem. I take them and an SSRI with my doctor's support. L-Tryptophan is in many foods.

I tried amitryptaline briefly after being prescribed it for sleep, I was taking 10mg but it did nothing to make me sleep, although I wasn't on it very long because it made me feel rough the next day - gave me a real thick head. I learnt it's an old drug from the 60's designed for depression but appears to be prescribed for all sorts of things.

l-theanine is in green tea so you don't need to buy special pills or anything, just make a brew!