While this isn't rocket science, no one can diagnose your problem via MedHelp.
See your doctor -- you need a physical examination and some diagnostic tests to determine whether or not your pain and dysthesias are being caused by a left-side cervical disease.
I have pain in left side of neck with stinging tight pain up through back of left side of head,pain down left shoulder down arm pain,tingling,pins and needles down left arm to left hand and fingers,also when laying down or sitting and turn my head to the right i get sharp pains in the back of left side of head and behind left eye
Welcome to the Back and Neck Community. Members are here to provide assistance and support to individuals experiencing symptoms related to possible abnormal conditions of the cervical and/or lumbar spine. Advice given is non-professional and is based primarily on personal experiences. Please post on the Expert Forum if additional medical advice is needed and one of the medical doctors will assist as appropriate.
Has the diagnosis of a pinched nerve been confirmed? Is the nerve that is pinched located in your cervical spine and thus producing symptoms of arm pain?
It is important to know the location of the nerve as if affects the type of treatment that is recommended. If you are under the care of a doctor, have appropriate diagnostic tests been completed such as x-rays or MRI?
Absent additional information, it would not be possible to determine your best treatment plan at this time. If you have specific clinical findings on MRI, please post them and we will try and assist you further.
Best wishes -----