Can sertraline give a tingling feeling down the arms and back when head is bent forward?

Hi, Kyle!
You should ask your doctor for a professional opinion. Although I don't know if it could be related to bending your head there is a side effect called paresthesia which is a tingling or burning sensation. It usually resolves within days to a couple of weeks.
I'm taking Zoloft and it's changed my life... for the much better as it has for tens of thousands of users. It's one of the few medications approved for treating depression and anxiety disorders.
I would advise staying with an antidepressant/anxiolytic like sertraline or an anxiety medication called buspirone if you're taking it for anxiety because they treat the root cause of your disorder. Benzodiazepines like Xanax or Ativan simply mask your symptoms and are not only addictive but can cause serious short- and long-term side effects. They're a controlled substance for those reasons.
Best regards,
Wildcat

Hi there Kyle
The medication that you are taking was never prescribed for me. To my knowledge, it can cause all kinds of reactions. I've had GAD severe for many years. The only way I have relief is by taking a combination of Paxil and Xanax. Those medications are specifically designed for Severe Anxiety disorder. To this day, I haven't heard that Sertraline has helped anyone. But, they keep trying to push it on patients. Even if someone is having a good result from it, was when it was prescribed with an actual anxiety medication. I hope you will talk to your doctor soon. It's definitely not the best medicine for you. But, if you stay on it, your doctor should also give you either Valium or Xanax to take with it. Take care