hello.. my mom is 74 years old. she is very healthy until this age. 2 years before she said she feels like a burning sensation on her back. its like a feeling of burn after you get contact with nettle. slowly she began to say sometime its like sitting near a big fire.. she even thinks sometime it must be red... when we see its just normal. it dissapear sometimes and sometime its more. she went through checkup, recomended physiotherapy and the physiotherapy recomended hydrotherapy but didnt work also neurology doctor give her some medicine which she took for about 7, 8 months. nearly about 2 and half months ago she travelled to a holy place which took about 3 hrs drive to reach and return again. she has motion sickness where she has to struggle feeling head spinning, and feeling of vomiting, she lose lots of energy while traveling. . so she doesnt travel much. after that travel it took several days to recover her motion sickness. she had some bruse under her breast which took several weeks to heal. then since that travel she sweats every night. however the sweat has reduced to some extend but its still sweating. recently she had met the doctor ,neurologist , he recomended some gastric medication, and said to have meals on time, have good rest and some exercise. she also has lose some weight. she defenetly feels sad as her elder passed away last year who she was very close. and some family issues which makes her feel sad and lonely.. i was worried when i read that it can be a symptoms for some cancers. please advice kindly. may the god bless you. thank you.