Anxiety making my pain and cold sensation worse??

Right leg around the knee is painful it feels like there is something tight around it especially when I bend the leg here the anxiety part lately I feel like that leg is cold it's cold to the touch color is normal other leg is fine warm regular I've read it could be circulatory problem I'm afraid of dvt. Leg was really this morning took an epson salt bath and pain pills and it didn't help I've been feeling dizzy and short of breath is my anxiety playing tricks on me? Also started feeling sore chest it hurts with certain movements and I'm left having to catch my breath. If I don't feel the foot cold I feel it ¿burning? A really hot sensation.

[1957tenn]

I've just joined so I'm new at this but could someone tell me what is DVT

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Deep Vein Thrombosis