I was really anxious last night and had uncontrollable muscle spasms, mostly in my stomach and then I started hyperventilating. Does this constitute a panic attack? Any advice on how to control these symptoms and to get calm again quickly?
Sounds like an anxiety attack. The advice given about the paper bag, and the advice about regulating your breathing by counting, are both good.
Given the connection between this question and your previous question about how not to have such pronounced negative reactions to upsetting situations, though:
I’d advise seeing a doctor or psychologist. Your symptoms, taken as a whole, are looking like you might have Post Traumatic Stress Disorder (PTSD). Especially if you were abused or otherwise traumatized in childhood or adulthood.
PTSD is not a psychosis. Normal people get it, including soldiers who go to war. Sometimes also emergency med techs or doctors get it from seeing lots of people die. It is an anxiety disorder which often also causes depressive symptoms. It is *not* only found in those who deal with death. Anyone who is traumatized enough, including victims of abuse or assault, can get it.
Its symptoms include anxiety attacks, and highly intense emotional/physical responses to stressful stimuli which seem out of proportion to the present time. This is because the present stressor is connecting to the subconscious mind and setting off a big reaction which is based on some earlier trauma.
For example, my mother used to have anxiety attacks if she had to be in an urban decay zone at night. And she also avoided going downtown at night. This had no connection to the present, it was connected with a nasty assault she suffered in the downtown area of a big city at dusk.
And I used to have anxiety attacks whenever I had to deal with angry or verbally abusive customers. This isn’t in connection with the customers. It’s because from ages 6-8 I had an alcoholic relative in the house who used to get angry and verbally abusive when drunk, and then beat various family members.
People who have PTSD are often mislabeled as "depressive and anxious" as well as "overreactive, oversensitive, too thin skinned."
I cannot make this diagnosis since I am not a MD, so I might be mistaken. But if you do have PTSD, then your problems will not respond well to meds and will really improve as soon as you get the right therapy! It responds best to EMDR therapy.