You still have plenty of options to help you manage the pain. Do Not give up before you try a few other meds or options . You said you were dx with this in Jan ..but how long have you had this? do you know when you started getting trig pain?
Have you seen a pain specialist doctor ? I would suggest you try and see one if you are able. they can help more the you would think.
give yourself time to adjust to the new med you started taking yesterday. and PLEASE let us know how you are doing . We are here and this is a good place to find friends .

I hope your Sunday is smoother and the hours spent with less pain.
PEACE and HOPE
BMW