<s>[INST] Hi I have a small hard pea sized lump right under my rib cage. It s quite sore. I also keep having dizzy and lightheaded episodes. I have also fainted twice could they all be connected? I m 17 years old and take Levothyroxine everyday. We think this may be the answer but it s best to ask [/INST] hi.noted history of lump below the rib cage. it may be an inflammatory reaction, a fibroma, a lipoma or a cystic formation. no, it may not be related to your fainting. it is best if you consult a doctor, for complete physical and clinical evaluation. diagnostics and management (medical and/or surgical if indications are found) will be directed accordingly.hope this helps.good day!!~dr.kaye </s>