It sounds like you are experiencing symptoms of an anxiety or panic attack, especially since these symptoms (stomach pain, nausea, breathing difficulty, shaking) happen after emotional stress like an argument. Anxiety can strongly affect the body this way.
Next Steps
Consult a doctor (preferably a psychiatrist or physician) before starting any medication. A doctor might prescribe short-term calming medications (like clonazepam, lorazepam) or suggest long-term options like SSRIs if needed. Meanwhile, practice calming techniques like deep breathing, grounding exercises, or progressive muscle relaxation right after arguments.
Health Tips
Keep a glass of water nearby; drink small sips when you feel symptoms starting. Try the 4-7-8 breathing technique (inhale 4 seconds, hold 7 seconds, exhale 8 seconds). Avoid caffeine or heavy meals after an argument. Write down your feelings instead of bottling them up. If attacks happen frequently, therapy like CBT (Cognitive Behavioral Therapy) can help a lot in managing anxiety long-term.