I've posted lots on here lately, I have ankylosing spondylitis and costochondritis. Been generally unwell for five weeks, chest x ray showed possible consolidation so I've been on anti bs. The one sensation I'm getting I don't like is this aching up my chest and feeling like I can't get my breath. It's happening a lot and never comes to anything so it's not killed me yet but it's horrible when it happens. Can anyone shed any light on this? Is it the ank spo? Would really appreciate some advice as I'm really down from being so ill for what feels like forever x