knee pains

[Perplexed]

Since side sleeping is the only option right now, it seems I have a new problem that I didn't come across last time. Whatever side I sleep on, the knee tends to lock up and the pain wakes me up. it becomes a struggle to switch to the other side. Then when I wake up on the other side and it's the same thing just the other knee. Any tips or tricks to make this better? I've pretty much accepted that sleep will only get worse but any tips will be great.