Nothing to be concerned about here. I understand your discomfort, but what you are experiencing is a physiological phenomenon known as hypnogogia. It typically occurs in persons who have either intentionally deprived themselves of sleep for periods greater than 24 hours, or in the case of persons suffering from insomina.

Hypnic jerks are technically classified as myoclonic twitches and arise from a response by the brain that misinterprets the physical sense of relaxation toward sleep as inappropriate. The affected person often feels jolted by the experience and can even sense less intense approximations of the reaction by moving their eyes horizontally from extreme left to right or vice versa, sensing a sort of pulsing or electrical impulse in the head, neck and even chest area in some cases. The sensation under these pretenses is usually extinguished after several movements of the eyes back and forth. A brief pause for several minutes will usually permit reoccurence.

Hypnogogia is not a sign that anything is wrong other than the body is deprived of sleep. Once you able to establish quasi-normal sleep patterns, the symptoms will abate.

You'll be fine.

Best regards and Good Health