Hi, I have suddenly developed some pretty concerning symptoms gradually over the last few months. My boss recently pulled me aside and wanted to know if I ve ever had my sugar checked before?? With that being said should I go to the ER if I m experiencing the following symptoms: blurred vision, excessive thirst, frequent urination, headache, EXTREMELY TIRED suddenly, and a strange feeling in my left upper thigh that s very painful, but I haven t injured my leg?? Please advise what you think. Thank you :)