When I look around, my sight on screen shakes.
This usually happens on world that use more memory.
I've heard that this happens on other Android devices but I'm not sure which ones.
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Thank you for your report!
However, this issue has been closed as a Duplicate of MCPE-16688.
Your additional information and observations are very useful, so if you can add them to the comments section of the parent issue it would be appreciated.
If you have not, you might like to make use of the search feature before making a new ticket, as it's likely that the issue has been reported already.
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I have a Samsung Galaxy S7, and I started noticing this problem roughly six months ago, while I had a resource pack added. After adjusting settings, with no improvement, I removed the texture pack, and restarted the game. That seemed to solve the problem, but I really wanted that texture pack. When I put it back on, I didn't have that issue for a week or so. So for the last 6 months, I have been removing the texture pack, restarting the game, and occasionally restarting my phone, then putting the texture pack back on and resuming play. The issue has continued despite updating my game regularly. I'm now using 1.2.9, and the issue has gotten worse: the screen shaking is continuing even without the added texture pack. It seems to happen when I press as if to mine a block, even if I'm just panning the camera around. If anyone has seen this issue resolved, please link that report here. Many thanks for all your hard work!