Beta Blockers are well known to produce increased bronchial obstruction and airway reactivity, and decreased response to inhaled or oral beta receptor agonists in patients with Bronchial Asthma
but less often in patients with COPD
.Usually a Beta-1 selective drug like Metaprolol is better tolerated & has lesser pulmonary side effects.
The jitteriness you describe is due to the beta agonists you would have received to relieve your bronchospasm
Your palpitations can be due to 1)abrupt withdrawal of metoprolol
which can result in acute tachycardia
2)Palpitations and Tachycardia can also be produced by beta agonists used for relieving bronchospasm.
Your cardiologist would be the ideal person to advise you regarding the replacement for Metoprolol based on your indication.