Panic attack during hard swim set.

I have had 2 panic attacks this week during a hard swim set. Feel like I cannot get enough air. Feels awful. Please help. These may not be panic attacks. Lack of oxygen may be related to a heart issue see a MD before you workout again.

I have had 2 panic attacks this week during a hard swim set. Feel like I cannot get enough air. Feels awful. Please help. These may not be panic attacks. Lack of oxygen may be related to a heart issue see a MD before you workout again.