check if u facing anemia also... iron def also cause shortnes.of breath at this stage

keep it self hydrated and relax keep ventilation proper and go to open place like a garden or park and sit and relax think good think think positive and if nothg helps go to Dr 

arooj meet your doctor asap

thank u <font color ="#3b5998"><b> @629847e308f7c30014119c82 </b></font>

Check your BP. please visit your gyno once. Be relaxed.. don't be worried.