Hi Alfred
When pain shifts from side to side, that is sign of spine instability, it can happen. It's scary, but for me on a positive note sometimes it give me a breather as the pain on the old side gets a rest. The creaking or cracking is called crepitis .
No one but a dr can tell you to increase your doses. Sorry to say drowsiness, dry mouth and constipation and (stomach pain probably from Diclofenac, zinc and tumeric) are just par for the course. Eat soda crackers as empty stomach makes it worse.
I completely rest in ice all day long, use Biotene gel for dry mouth and senna, when this bad.
You sound so bad today, it might be time to go to hosptial and get the morphine shots. At least it will be medically supervised and provide some relief quickly. Prayers for you