Hello, I Had A Thyroidectomy And Bilateral Frontal Comparment Removal,

Hello,
I had a thyroidectomy and bilateral frontal comparment removal, as well as several lymph nodes removed on both sides. This was last Tuesday. I left the hospital on Wednesday. I went to the ER for sever cramping in my back and stomach and numbness and painful tingling in my left arm that came on very suddenly.
They believe I have a pinched nerve which is the cause of my left arm numbness, and that the paralytic had not worn off completely, causing the cramps. They also said I have a flebitis at my left wrist where the IV had been.
For that I have been soaking my arm in a warm tub of epsom salts once or twice per day. Today it still was very tender though no longer red and swollen. I was gently massaging it while i say in a low bath and the site is lightly cramping.
At the hospital they mentioned the possibility of a blood clot but did follow up.
I am not sure what to be on the look out for anda holing you can help me.