Thanks for writing to us.Metallic taste
in mouth can occur either as a side effect to certain medication administered or due to Pericoronitis
OR deep caries of teeth.
I would advice you to get the medicines replaced which causes metallic taste.
Impacted or decayed tooth has to be extracted or restored if present.
Usually in such cases,Amoxycillin
has to be administered.
Gargle frequently with lukewarm saline.
Regarding chest pain
as well as muscle spasms,please do visit a GP .
Hope this helps.