i have pain from under my left side of my ribs to my belly button and it really hurts to breath this started about 3 days ago

after 2 weeks of working out eating healthy standing long hours ( i was leaning to 1 side at the  time ive noticed ) protien shakes around 1200 cals a day or more.... also 4 Ls of water  a day  ( exercises include  6 min abs bike riding  dumbbells sqauts and palaetes ) also abdominal massages to try loosen up the abdominal fat ( i am skinny )   i noticed  the left side poking out alot more then the right side  next to the belly button... i thought   :o ab!!??? then i realised no swelling... with a dul pain that radiates  sometimes down to my  hip bone 
im having a masive anxiety attack over this or its real ? first thing i thought was stomach cancer ? small intestine cancer ?  then i thought  i dont wanna tell my parents this and stress them out  first dr  said its normal just the intestine that moves i gave it  4 weeks with no exercises 
it was still there the 2nd  dr said  its abnormal but i shouldnt worry and relax come back in 2 weeks so i did so now he said he cant feel nothing while the abdominals have  swollen... ( it goes up and down )   after all of this im due for scans tomorrow wich freak me out making me  wanna just  sleep and not worry but i cant  cause i dislocated my arm for the 2nd time and cant sleep proper
ive also cleaned out a house im doing up to set for ppl to rent out  and there was mice feccies if theres any diseases in that ??
but the drs think im mad and no1 cares 
does anyone have any idea what this could be ??????( the dr also said while examined its not a hernia or a ceptic ulcer )

tomorrow i get an ultra sound and i wanna spew up
im scared that if they find something ill have to sneak it around my family and get it all done
also my arms dislocated the  other day and im now feeling like im broken  
this sucks

Pain under the left side of your rib cage extending to your belly button could be above the belt as well as below.  Possibilities include rib fracture (any recent trauma?), pneumonia (cough, fever, sweats, chills?), and/or pneumothorax (air in wrong place in chest cavity).  Any of the above could lead to difficulty breathing.

Peptic ulcer could present w/left upper quadrant pain as you described.  With perforation, it could lead to an acute (surgical) abdomen and cause shortness of breath.  Boerhaave's syndrome is esophageal rupture, typically from violent vomiting and could account for what you've described.

So could pancreatitis (excessively high triglycerides, alcohol, and/or gallstones?) and issues to your spleen (trauma, sickle cell, and/or mononucleosis).  Diverticulitis is typically left lower quadrant but if the area of inflammation is more proximal, say close to the splenic flexure, that may account for the left upper quadrant pain.  Kidney stones usually will be described as back pain but conceivable might cause some flank/ribcage pain.  

As you can see, there are lots of things to consider.  Best to seek a medical evaluation from your family physician.  Good luck!