Stomach burning

I completed a 14 day Water Fast and noticed on day 7 or 8 that my stomach started burning and I started to experience shortness of breath/asthmatic type symptoms which have continued into my 9th day of refeeding. I am now on day 9 of refeeding and it seems as though after I eat is when I experience the most shortness of breath/asthmatic symptoms included sinus issues and am still also experiencing burning in my stomach. These symptoms are causing me fatigue/weakness. What could be the cause of this and what natural solutions can be of benefit to calm down my symptoms.

Please Note: I am on a very clean blended plant based diet to help ease back into refeeding and to continue to help give my digestive system some needed rest!