<s>[INST] It begun 4 weeks ago, on my lower right side just under my ribs I felt a bruise with no mark, then a tiny lump, the dull bruise feel has worked around my lower back now reaching my spine and feels like tiny lump has moved also! My GP booked me in for ultra sound, but am worried as to what it could be, any idea? Also, I am fairly fit, 28yr old female. [/INST] Hi, DEar, thanks for your query to Chat Doctor. I studied your query in depth.1-In My opinion the small lump underneath the right ribs with bruise spreading to the spine, with the movement of the lump also, appears to be-Shingles -or Herpes zoster/ or Spider bites-with lumps.2-I would advise you to -have consultation with physician...3-Ultarsond may add little to the causation of the lump but the FBS and PPS -needs to rule out diabetes-as shingles is more prone in diabetics.4-Hope this would solve your query.5-Wellcome for any more questions on new or this subject also... Hava A Good Day.!! </s>