Just wanted to share my children's symptoms as well.
Daughter: colicky, severe constipation, would choke a lot on her bottle, couldn't sleep ( also has issues transitioning to sleep. Once I started having hyperventilation/ being woken up feeling like my heart stopped I realized that maybe this is what my kids were feeling too) Night terrors, livedo reticularis, pernio on toes, nausea, headaches, dizzy/lightneadness, heart rate increase on standing, burning legs up the stairs, blue sclera, can't walk long distance at all, exercise intolerance
son: (10) hypotonia, flat feet, exercise intolerance, he gets very itchy when he exercises, he had 2 episodes of "hyperventilation" at 7 and at 10 Dr said panic attack I never believed it. The episode when he was 10 happened on a hot day He went walking with my husband then spent the day in a heated pool It took over a week for the weakness to go away. He sweats when he sleeps He also choked on the bottle a lot and was colicky Again, he would cry after 40 minutes of sleep. He also has tics