(The following is detailed from a personal journal of events) 12/3 - Day of booster (2:30pm), no reactions  12/4 - 8am woke up with intense chest compressions lasting nearly the entire day until around 6pm, pain level 6 on a scale of 1-10. Called doctor to ask what to do, was advised to wait it out as it may just be muscle aches and to take otc pain meds if i have them. I took low-dose aspirin and pain subsided after meds and shower. Felt okay into the night and through sleep. Have never had any heart conditions, "heart burn," or similar pain prior to this event.  12/5 - 12/14 - Lingering dull pressure constant in left chest, just under breast area, all day for many days. No intense chest compressions but the pressure would range from level 1-3 on a pain scale of 1-10. Random "pings" of pain felt shooting around body on left side from time to time across the week: behind knee going upward, behind the jaw, in the arm.  12/15 - Lingering dull pressure still experienced in left chest, day is quite similar to day before but with chest pain getting stronger at night when laying down. Used heating pad over chest to sleep.  12/16 - Starting to notice more constant pain/pressure in left leg right before bed. Laid down to a noticeable change in left-chest pressure with pain mounting into the night to at least a level 6. Used heating pad over chest to sleep.  12/17 - Woke up to pain in left leg when stepped on for at least 10 mins. Leg okay through the rest of day. Same dull left-chest pain constant throughout day. Random pings of pain still occurring around body as well. When laying down at end of day, a sharp shock of pain shot up from abdomen to behind chest mounting into intense lvl 5 chest pains while laying down until falling asleep. Used heating pad over chest for comfort.  12/18 - Similar experience as day before: lingering left-chest pressure. No sharp/intense pain like the night before. Called doctor, brought into Urgent Care. Slight shortness of breath on drive over to clinic but nothing else. Did chest x-ray to check for lung issue, but all clear. Prescribed Naproxen 500mg to treat as "Pericarditis." Took Naproxen before bed and managed to sleep for the first night without intense chest pain.  12/19 - Mostly normal day, took naproxen in morning w/breakfast. No notable symptoms except lingering chest pressure as before, however, pain is below a level 1. Still experiencing somewhat random pings around the body on left side: chest, neck, and left temple (as if headache). Took naproxen at night before bed, second night able to sleep without intense chest pains.  12/20 - Similar readout to day before. Took prescribed meds. Slept okay. No intense pain except for lingering dull pressure.  12/21 - Woke up with same dull pressure, 10am took naproxen. 1pm dull pain worsened from level 1 up through level 5 over the next hour. Decided to do errands anyway, arrived at a store around 2pm and on the walk from car into store, pain shot up to level 7/8, very intense, scared was having heart attack, got smart watch alert for bpm over 135. Walked back to car to rest and called doctor, took 2 low-dose aspirin, pain subsided to manageable level 2. Ate lunch before coming in to Urgent Care at 5pm. New doctor completely wrote off possibility of heart condition, booster complications or pericarditis and insisted it was heartburn and holiday stress.   (I'd like to note how appalled I am because I eat VERY well--a majority plant based diet and I am very stress free during this time as I'm not even working and have no kids. I also do NOT get heartburn at ALL.) Doctor prescribed both Omeprazole and Mylanta... gave the benefit of the doubt and decided to take them anyway in addition to my naproxen. 10pm pain began to mount again, took naproxen before bed, 11pm struggled to sleep with left-chest pain at level 3.  12/22 - 9am woke up with little to no pain, dull pressure back down to below a 1. 11am left-chest pain bumped to lvl 2 with noticeable small headache on left side. Took naproxen and the rest of day was mostly neutral with pain back down to dull pressure until sleep. At 1:30 am, however, pain began to intensify again so took my nighttime naproxen and attempted to sleep.  12/23 - 12/24 - took routine naproxens, nothing notable except lingering left chest pain as usual, level 1 throughout the day. No notable intense chest pains when laying down for bed.  12/25 - New occurrence: same left-chest pressure is slightly more intense and radiating into left arm coupled with dull left-temple headache lasting all day. 9am took morning naproxen. 11:45pm took night time naproxen. 12 midnight laid down with a sharp left-chest flare-up like a shooting level 4 pain pain but fleeting. Once it subsided, no notable intense pains while sleeping.  12/26 - 12/29 - Stopped taking "heartburn" medications as it began to mess with my digestive system, caused indigestion and bloating likely due to the fact that i didn't need to be taking them in the first place. The last of my naproxen was used on 12/29. No notable intense chest pains during these days but the lingering dull pressure remains as per usual.  12/30 - 12/31 - Same dull left-chest pain is still there, slightly more intense on 12/31 with a few episodes throughout the day where pain intensifies and is harder to breathe correlated with moments of exertion. Still no intense chest pain at night/sleeping.  1/1 - 1/4 - The left-chest pain has started to become more intense and sits at a level 2/3 on pain scale of 1-10. Now having episodes throughout the day where pressure intensifies more and breathing is difficult due to heartrate increases, overexertion, excitement, etc. Dull headache from before continues and is lightly more intense, seems connected to sinus on left side? Have started taking low-dose aspirin over the past few days as I've been scared that I have a clotting disorder caused by the booster. Seems to help with the episodes of pain and also helps with sleep.  1/5 - 1/7 - Headache has increased in pain and is now a very specific spot on left temple that I can identify. Pain in left-chest still persists and it has been 1 month since it started. Pain in left arm persisting. Can now also feel pain radiating to the back in a very specific spot beneath shoulder blade as well. Called doctor on 1/7 to ask what can be done and was ordered a CT scan that will occur January 11th, 2:30 pm (19 hours from now).   1/8 - 1/10 - More intense pain when laying down for sleep is occurring once more and have now been scared of getting heart attack/aneurism/embolism in my sleep. At time of writing this, the left temple pain is persisting at level 3 with pain in left side of neck from behind jaw, and pain radiating from left chest into arm at level 2. Past few nights have had difficulty sleeping due to left-chest pain.