I will answer to your question according to ayurveda.
Firstly,you should do abdominal sonography
first to rule out your fear.
If the report is ok,then don't worry,its a physiological problem that you have.
Now what ayurveda thinks regarding this problem?As you are also suffering from urticaria
(sheet pitta) along with yellow skin.This is called tirykgamitva of doshas.
My experience says if this is not due to gall bladder stone
then its related with blood(rakta) +rasa(lymph) +mamsa(muscle) dhatu. This is called samtajaneet pitta/kaphavrurtta pitta dosha in ayurveda.
The best medicines for this are navayas loha/punarnava mandure/shankha bhasma/praval pishti etc along with dhanvantar ghritam/mahatiktak ghritam/dadimadya ghritam. I got excellent results with these medicines in my ayurvedic practice at my clinic.Also maximum intake of ginger/hing/spinach/yam/beet root/turmeric/coriander seeds/black cardamom/oregano/mangostine peel/jaggery/green gram daal is also recommended.
Also do various test like LFT,AST GGPT,AP,Urine analysis,BUL,ESR,BSL etc.If any problems occurs the above written treatment is also effective in gall bladder
stone +in any liver