I have been haveing pains in my joints tight chest,weight gain, m...

I have been haveing pains in my joints tight chest,weight gain, my legs are so weak,sore troat,raspy voice,which I am a singer so it really effected my work,I get numbness down my left side and my heart beats really fast,,it scared me so much,,I stared haeing doubts about docters these days,,my docter gave me them as samples out dated,but told me to use them anyway,that being out dated was harmless,I haven't felt like myself in a long time,does anyone know if it ever goes out of your system,can I ever be back to the way I was,,Please help me if you have any information,I have 5 children and I want to be able to watch them grow,will the pain in my chest down my side and my legs can I take anything healthy to make things better,,I find it weird,,because I find it hard to take tynol for anything because I always hate to take any kind of drugs,then I turn around trust my docter and take one of the worst drugs out there,