Welcome in H.C.M.
I have gone through your query regarding vomiting
with phlegm, soreness in skull, chest and upper back and feeling of bubbles in neck.
Your above symptoms are in favor of respiratory tract
infection involving your sinuses
, nose and chest and there is possibility of rupture of subpleural bullae to given rise to sub cutaneous emphysema
I will advice to consult your family doctor for thorough examination and rel vent investigations to plan for treatment.
Till you are in waiting for doctor you may take-
(b) Anti inflammatory.
(c) Warm saline gargling.
(d) plenty of fluids orally.
Hope your query is answered.