Trying to call my triage but they've been constantly engaged. I had my second dose of sterroids today at 28 and 5 as I'm at risk if prem labour (last baby came at 29 and 5). Yesterday I was fine after the shot but today I had my second dose 2.5 hours ago and now I'm feeling breathless and my pulse is fast; not super racing but my resting pulse is usually 50 and now its 84. Any idea if this is normal and/or how long it might last?