Low platelets, back burning pain.

Hello sir/madam.... I m suffering from low platelets count 62000,58000,56000, 48000,low hemoglobin 11.5,11.2,10.5,severe back burning pain sensation,gum bleeding while brushing, rashes on thigh which turns into black in summer and rainy season, while scratching it bleed in the size of pins point, shoulder pain, arm pain, forearm pain,wrist pain, fingers pain, breathing problems, abdominal pain, morning stiffness, foot and hand pain, feeling tiredness, eyes pain and burning, headache, pallor, frequent urination 14 to 15 times in 24hours, back burning pain get worse while doing some household activities... Can u plz help me Dat what's goin on with me...do I have multiple myeloma... Plz suggest some blood test...