Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice.
I have gone through the whole symptoms you have described. I understood that your mother is suffering from a new onset of an
episodic headache. To my knowledge, it looks like a condition called
occipital neuralgia. It is a rare type of primary benign headache. Benign means not a serious condition. So don't get worried. I like to share more about occipital neuralgia.The term “neuralgia” refers to pain in the distribution of a nerve, in this case, the occipital nerves. Attacks are episodic and last a few seconds to minutes. Pain is piercing, stabbing, or sharp in quality, and severe in intensity. Sometimes it can be mistaken for a migraine, but a
migraine headache is usually last longer. Occipital neuralgia usually diagnosed based on a thorough history and physical exam. The neurological exam will often be normal. By diagnostic criteria, the pain will be eased temporarily by injection of a local anesthetic along the affected nerve, but not always necessary. MRI or CT scan brain seldom required to rule out other harmful causes. I will suggest for your mother a conservative treatment including rest, periodic warm or cold compress, massage and
physical therapy, directed at alleviating secondary muscle tension. If medications are necessary I recommend anti-inflammatory and
muscle relaxant for temporary relief.
In severe cases, we use
Carbamazepine, Gabapentin, Pregabalin, and Tricyclic antidepressants which tend to decrease the frequency and severity of attacks. Refractory cases some required
nerve block or surgery. Regarding side effects you inquired, Yes Escitalopram can cause Dry mouth, body pain, loss of appetite. But diarrhea is not a side effect of Escitalopram. I suggest you discontinue the medication.On a cautious note, I like to say that as she is 60 yrs old, and new onset headache, if she is persisting with new bothersome symptoms doing brain imaging (MRI) is worth.
Hope I have answered your doubts. If anything else I will be happy to help.
Regards,
Mahendra T