Thanks for your question.
You should see a rheumatologist and if possible an immunologist who specialise in immune mediated reactions as you feel that this is a reaction to vaccination you have had.
I am sorry for the late reply.
I had been offline for few days and could not access the justanswer website.
You have symptoms in addition to the joint pain.That gives another dimension to the problem.Moreover you feel that the problem has started only after the vaccination.The clinician who assesses you, has to synthesize the the different parts of the information to make a diagnosis.
If only problem was with one joint orthopaedician may have been consulted.Because you have other symptoms which orthopaedician may not be the best person to assess , you should see a rheumatologist.
Rheumatologist is trained to assess the joint pains which are due to systemic causes like auto immune disorders, connective tissue disorders or other immune system related disorders.
Orthopaedic specialists are trained to assess and treat joint pains which are due to injuries, trauma, degenerative joint conditions.They are not trained to treat joint pains related to immune disorders.
Nothing in your description suggests a neurological issue.In view of stomach issues you may see a gastroenterolgist as well.
Ultrasound test being normal does not mean that everything is good and fine.It is just an aid at visualizing the organs inside abdomen.Your doctor has to decide what may going wrong.
Feeling pain in different location to feeling food getting processed does not mean that there is a neurological disorder.
Location of pain in abdomen is just a rough idea regarding the pathology.It is not absolute.We cannot diagnose the condition causing pain here.We can just guide you regarding what may help.
It is advisable to see a doctor who can diagnose the cause of your pain.
Change in pain with change of position indicates that this may not be related to intra abdominal pathology.Still it does not mean that it is neurological in nature.
It may be muscular , that does not mean neuro muscular.
There would be a neurological reason like compression on a nerve or some other nerve pathology like inflammation of the nerve etc...The nature of nerve pain is different, usually radiating type.
Muscular would be due to a muscle spasm etc...
Let your doctor decide what tests would be needed.
Not necessarily.The auto immune mechanism may or may not involve nerves.
I am not an orthopedic doctor.I am a physician and I did suggest that you get yourself checked by a rheumatologist but after having had the detailed conversation with you, I feel that you may be better served by seeing an orthopaedician.
Your shoulder as well as abdominal pain which is likely to be muscular can be assessed by your orthopedic specialist.
If orthopaedician feels necessary you may see a neurologist.
Yes, he may advise the test if he feels it to be useful.
I don't feel so.
Cannot tell.Your doctor may be able to tell.