Feeling breathless & stomach 'tightening' in early pregnancy?

Hey ladies. I'm 14 weeks and few days. Lately right under my left breast the stomach area, I feel kind of tightening & uncomfortable...very weird and it doesn't help I feel breathless too! I have to catch my breath a lot! :( is this normal to your girls? I have no idea what is going on..it's still pretty early for all this?