Recently, I've been feeling really off during random moments and its reoccurring. 

I'll feel uneasy and anxious for no real solid reason, feel short of breath because of all the thoughts in my head swimming around and also because of the anxious feelings. My chest feels tight and like its being pressed down. 

It feels like theres something that I missed or something that I should be worried about and that thought/feeling alone makes me feel kind of sick. 

This is something thats been gradually being developed over the past year or two and its pretty recent. And I dont know if this is anxiety or some other thing.

Anyone with advice, I'd appreciate the help.