Lupus And Chest Infection What Could I Have? Please Help. Could It Be Lupus? Stomach Cancer?

What could I have? Please help. Could it be lupus? stomach cancer? - lupus and chest infection

I have these symptoms ... I've heard they have a urinary tract infection and infection of the stomach, but no sign of them.
Dizziness
-tingling/pins and needles and feeling very cold behind the head, then on the whole head, arms, shoulders and whole body at times (this is very unpleasant and sometimes intolerable)
-Joint pain and a feeling of dry bones
Troubled times
his headaches (sometimes sensitive to light / and sometimes temporary [1-3 seconds] loss of vision)
- Several times a message "down" feeling when I walk or stand
- Periods of sleeplessness
- Periods of fatigue and weakness, sudden
Memory Problems
psychological problems such as mood swings and depression
Problems thinking / concentration / absorbable ... Information
Continuous cooling
- Periods of irregular heartbeat
- Periods of chest tightness / pressure, heaviness in the chest
- Shortness of breath / breathing problems (such as a panic attack)