Hello,
The problem in your shoulder and around left eye is unlikely to be caused by the lower back problem. If by fluttering you mean that there is a real movement in the muscles then it is likely
fasciculation. Fasciculations can be seen in a variety of diseases causing damage to the
nerve like compression etc. The test which can confirm or refute this would be
electromyography which will be performed by a
neurologist. It test in which the electrical activity in the nerve and muscles is recorded and assessed for normal patterns. Yu can talk to your neurologist regarding that. A MRI of the
cervical spine also is recommended.
good luck.