I have been feeling not quite right for a few months now, dizziness, twitches, pins and needles (in patches lasting a few seconds), brain fog all comes and goes randomly. I have noticed the last few tingling patches have quite often been either under my left armpit or in my right groin. Anyone know if this can be sinister - I am anxious and of course going for worst case scenario of cancer affecting the lymph nodes. Can't feel lots of lumps, just this occassional tingle area. Have made a doctors appointment but it's not for a few weeks and I need talking down as am panicking. Anyone heard of tingling being due to cancer spread?