"I received the Covid vaccine at about 1140 on 1/23/21. I sat for 15 minutes and went to get up I was I little dizzy so I sat back down. I stayed downstairs for another 10 minutes. at 1220 - I then got up with no additional dizziness so I proceeded to go back to my department. It is worth noting that I normally have low blood pressure so I do sometimes get the dizzy light head sensation but it resides by sitting back down and waiting a little bit. For this reason, I did not think of it as a symptom/reaction to the vaccine.  Along the way, I got a little dizzy; different than my normally low blood pressure feeling - this was more of a spinning type of dizzy - hard to get my bearings. I kept on walking to my department as I work in Cancer Care and there was no one in the part I was walking in at that time. In the process I got an intense heat throughout my entire body - it was super hot it felt like a fireball. I then started to get a lump sensation in my throat. I got back to the department and my coworkers said I did not look good at all and had me lay down. I was later told that my face was very puffy and swollen. They stated that I was extremely red and overall not good. There was a definite sense of urgency. I then laid down and we put ice behind my head and the Radiologist came in to look at me. At that time I started to feel a tingling sensation in my throat and neck, I did notice a voice change (my voice was more raspy/airy and was crackling. I could feel my heart beating super fast and hard. At this time I felt like it was hard to catch my breath, I did not have wheezing or a tight chest sensation. The staff member then went to get a nurse from the neighboring department. We did vitals and my blood pressure was very high 168/98 was the very first one. Along with an elevated heart rate of 138. O2 saturation was 98%.  The decision was then made to call a rapid response. The response team came. They did additional vitals that stayed elevated in that range. They did a blood sugar which was around 79.  I was informed that I had a rash on my neck going down my chest and on my stomach. They tried to lay me down, that really bad I could not catch my breath and felt immediately worse, so we sat back up. Upon further evaluation, the decision was made to take me to the ER. I had developed a headache by this time. Upon examination, they noted that I also had a rash on my back. Benadryl and Tylenol were given around 1400. I remained in the ER until my vitals started trending down and the tingling sensation started to go down and my voice returned to normal. I was discharged around 1520. Upon arrival at home (1800) I started to get the tingling sensation and lump feeling back along with a tight chest and cough, along with an increasingly intensifying headache. I took 100mg Benadryl and 800mg of Ibuprofen(1800). This helped the symptoms settle back down. I have been taking 100mg of Benadryl every 4 hours because these symptoms keep coming back. Additionally, my entire body has started to be extremely itchy, onset was around 2000 1/23/21. I was unable to sleep well due to the symptoms returning, headache, and itching. Additionally, until 0200 I was unable to lay down comfortably without feeling like I was SOB. Around 0600 1/24/21 I started with joint aches. At this time I am still taking Benadryl every 4 hours 100mg and 800mg of Ibuprofen about every 8 hours. I have not had a fever. I am closely monitoring the situation along with a family member who is in healthcare. I do have an Epi Pen at home should I need it.