I just began to exercise and I can say sometimes I feel as though I'm scared to even begin or even try it--but when I let go of the fear and work out--I do not over exert myself--I just do enough to make me get a good sweat---but it makes a big difference for me. It helps with my breathing and it frankly takes my mind off of the constant thoughts and anxiety.
Maybe you can build yourself back up slowly....instead of pushing so hard...work your way back up until you can manage that level again
If you only began to experience anxiety AFTER your father passed away, I'd say that's more than likely your answer right there. Perhaps not the ONLY answer, but definitely a large part of it. The loss of a parent can be devastating. You do also mention stress at home and work.
Exercise IS an excellent means of coping with anxiety and stress, but sometimes it's just not enough.
I'd advise seeing your doctor for a thorough check-up and a frank and honest discussion about your mental/emotional health as well. It sounds to me like you would greatly benefit from some therapy. Your doctor can hopefully refer you to someone well versed in anxiety issues.
I wish you the best
Peace
Greenlydia
I'm so sorry you lost your father. Year markers can be very stressful.
You might want to try a couple of things. First, grief counseling, and the second thing is to walk instead of run. Are you cooling down before stopping your run? It puts a lot of stress on the body if you do not cool down before stopping any exercise.