Hello
I have been through your question.
According your symptoms you should know that shingles shot can have some side effects like some redness, soreness, swelling, or itching on the back of your arm where you get the shot and less common side effects include
headaches.In very rare cases, people have developed a severe
allergic reaction to the
shingles virus that include swelling of the face (including the mouth and eyes), hives, warmth or redness of the skin, trouble breathing,
dizziness, irregular heartbeat, or a slow pulse.But, in your case I think you should be calm because for the moment your symptoms are normal side effects of
vaccination that could last till 3 days,including here reaction of cervical lymph nodes (as a result of local side effects).
Furthermore if you see the symptoms of a severe reaction must talk with your doctor.
I hope my answer help you.
I wish you a quick recovery.