Stiff neck painful to bend forward and cramps in arms can be due to cervical spondolysis. This can cause compression of the nerves and hence pain and tingling sensations. Diagnosis can be confirmed by x-ray neck or MRI spine.
Apply warm compresses on the area and take some over the counter anti-inflammatory pain killer like ibuprofen or diclofenac. Application of topical muscle relaxants will also help. Cervical spondolysis also responds to anti-inflammatory drugs and cervical collars.
If the symptoms persist then please get it evaluated from a doctor.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.