Anxiety wouldn't cause me:
back pain/soreness/stiffness,
Then explain how muscular tension affects the body.
Explain how magnesium reductions affect the body.
Explain how postural problems affect the body.
Explain how sleep cycles affect the body.
Explain how REM sleep cycles are affected by mental health conditions.
Explain how aches & pains are experienced by all human beings outside of anxiety and why they can occur?
ALL of the above can experienced in conditions like anxiety.
See above.
See the points about body aches and stool issues.
some swollen abdominal lymph nodes near the cecum,
Does a doctor agree they are swollen? This would seem unusual in anxiety to me and one for a doctor.
stool that still isn't normal,
Then explain why so many IBS sufferers have a comorbidity with anxiety disorders.
Explain how fight or flight affects the GI & bowels.
ALL of the above can experienced in conditions like anxiety.
pains in my chest not seemingly heart related,
Then explain how palps, ectopics, etc are caused and why they are seen in anxiety disorders.
ALL of the above can experienced in conditions like anxiety.
Then explain how stress can cause headaches.
Explain how dehydration affects the body.
ALL of the above can experienced in conditions like anxiety.
Explain how sleep is affected by anxiety.
Explain how muscular tension affects the muscles in the neck & head.
Explain how clenching & grinding affects the muscles in the neck & head, and explain how it does do in particular when asleep.
and left hand/foot tingling and weakness.
Then explain how adrenaline affects the extremities.
ALL of the above can experienced in conditions like anxiety.
Why are there some swollen lymph nodes,
Who says they are? You or a doctor? If the answer is that you
believe you can feel then yet a doctor, or doctors, who have probably felt more normal & abnormal lymph nodes in their working lives than you've eaten meals (not considering their training too) doesn't feel they are swollen?
If doctors say they are not swollen but you say they are, how do you know?
Have you spent time physically inspecting lymph nodes on other bodies to know what is normal? They have.
Have you spent time physically inspecting the lymph nodes of people with genuinely swollen lymph nodes? They have.
And have you been trained to conduct an examination of them? They have. (how you manipulate your body to find them changes their size for the purposes of accessing them to check if they are normal or swollen).
yet why can't my GI find anything specifically wrong from colonoscopy, endoscopy, and the rest of the ct scan?
Because anxiety doesn't show up on any of these scans?
Because there is nothing to find?
How could I have some fatigue and potential weight loss, plus some blood in stool, but no anemia detected?
Because there is no anaemia to find?
Because
some fatigue and
potential weight loss can be found in many physical & mental health disorders? So, why does it have to be anaemia?
Because "some blood in stool" is experiencing on a daily basis by millions of people and it never comes to anything? Because anxiety can mean bowel changes that lead to things like roids & fissures?
What is causing the back pains and other aches?
See above about muscular tension, posture, sleep, etc.