Hi,
Welcome to HCM.
First,when you choked with
panic attack,it is better you started heimlich manoeure.
Since how long you are having productive green siptum,you have not mentioned which is important in every case.
However, it could be suggestive of some infection in lungs like acute
bronchitis or
pneumonia or rarely COPD but you need to examined for respiratory system and some routine blood works with sputum examination for routine-microscopy,culture,chest X-ray.
Your arm pain and occasional
chest pain are
muscle pain which in turn could be due to coughing.
I think you should be investigated properly for the diagnosis first rather than just taking antibiotics.
So,it would be better to see pulmonary physician and start antibiotics by his advise.
But don't bother with full course of antibiotics you will be alright most probably.
Regards,