Booster made me feel sick day after and caused lymph nodes to swell and become tender on  Friday 12-3.  Had trouble sleeping Saturday 12-4 with slightly elevated heartrate.  Felt a bit better by Sunday 12-5, rode trainer and all was ok.  When i got done ate large breakfast.  I had tenderness center left side of chest near clavicle.  Heart rate rose to 100 when rested and 130 when walking, stayed 100 the rest of the day until i went to sleep. Went to ER about 1pm that day.  Took 25mg benadryl at bedtime.  In the night heartrate was 65 asleep, I woke up at midnight and had heartrate in the 90s for about an hour and fell back asleep after that, heartrate returned 65 till waking.  Elevated heart rate of 100 returned the morning of Monday 12-6.  Went to ER about 8 am due to symptoms returning after waking up.  Took ativan .5mg at noon.  Heartrate dropped to 90 at 1pm and around 4pm it dropped down into the 70s , rose into the 80s at 6pm (possibly after dinner) took 1mg ativan before bed(7pm) and mostly slept through the night.  Heartrate was around 70-75 when asleep.  Woke up Tuesday 12-7 at 4:30am and heartrate was in the high 60s to high 70s in the morning and mid 90s when walking around.  After eating breakfast (9:30am) heartrate climbed back to 100 and up to 145 carrying laundry a few trips up the stairs.  Returned to 100 upon sitting and resting.  Stayed 100 until about noon when heartrate dropped to 80.  Heartrate dropped to more normal range of 65-75 around 2pm.  Went to bed at 8:30 and woke up at 9:30 with heartrate at 80 and uncomfortable heart palpitations.  Laid in bed till 11:30 with no change, got up and took 40mg propranolol i was prescribed for anxiety prior for relief as this was very uncomfortable.  Heartrate dropped to low 60s around 12am.  Wasn't able to sleep much at all.  Tightness and discomfort around left armpit most of the night.  Heartrate still low 60s around 4am when i got out of bed.  Heartrate remained in low 60s until 7:30am, then climbed to 80s after eating breakfast at 7am.  <(Pre doctor) (Post doctor)>Heartrate stayed in a more consistent range for the rest of the day Wednesday 12-8  and was closer to normal in the evening.  Palpitations seemed to be happening less often.  Very tired after not sleeping the night before and went to bed at 7pm.  Took 25mg benadryl at 7pm and another 25mg benadryl at 10:30pm.  Heartrate at night ranged from 68-75.  Woke up Thursday 12-9 at 5am feeling better with heartrate feeling more consistent at 75.  Took dog for 30 minute walk with heartrate when walking of 115 which feels normal.  Slight palpitations during and after walk that cleared shortly upon sitting, heart returned to 75.  After eating breakfast heartrate climbed to 85-90, but palpitations are again less severe than previous few days.  Shoveled snow in the afternoon heartrate was peaked at 135 with moderate effort.  Slowly returned closer to normal in about 2 hrs.  Heartrate again became elevated 80-90 after eating dinner around 5pm.  By 7pm heartrate was 75, but was experiencing palpitations.  Went to bed at 8pm and watched tv until 10pm.  Heartrate ranged from 65-75 with palpitations during this time.  Took 50mg of benadryl due to restlessness from palpitations.  During sleep heartrate was 65, but woke up regularly with palpitations.  An hour before waking up heartrate rose a bit to 70.  Upon waking up Friday 12-10 at 4am heartrate went up to 125 when standing with palpitations and dry mouth when getting out of bed.  Took 20mg propranolol that was prescribed by doctor and within 30 mins heartrate lowered to 60.  Will begin taking propranolol as prescribed 4 times a day and 50mg benadryl at bedtime.  Was not taking propranolol as prescribed previous to this as symptoms seemed to be improving until now.  Also began taking tums as needed and prilosec once a day to alleviate symptoms of gerd.  Still experiencing throbbing and swelling near armpit area, back, and collarbone possibly still from node swelling and aggravation from shoveling?  This feeling comes and goes and possibly seems to be worsened by palpitations, but can occur even without palpitations.  Tightness and palpitations began to feel better around 8am, heartrate remained in check from propranolol.  Trying less carbs in diet as heavy meals seem to increase palpitations the worst along with lying down.  Shoveled snow for 40 minutes at 8:30 with heartrate maxing at 110.  Heartrate returned to 75 by 9:30 after resting, but with palpitations and throbbing in armpit area.  Heartrate began to climb at 10am, took 20mg propranolol and applied hot water bottle to armpit.  Will hold off on shoveling and exercise other than easy walks as the shoveling seemed to make symptoms worse.  Started icing node and the seems to help ease those symptoms.  From reading others experiencing the same thing magnesium calcium zinc supplements along with cbd seem to help, have added that and will track response.  Node issues seem resolved on Saturday 12-11 and heartrate appears to be normalizing, though not completely normal yet.  Stopped propranolol and sleep aids aswell to try and let body recover naturally, will add back if symptoms get uncomfortable.  Slept better Saturday night with no sleep aids, had some restlessness, but overall sleep was good.  Sunday 12-12 heartrate was elevated with palpitations again though at this moment still seem like an improvement from the previous week.  Heart issues got a little worse after walking dog for 30mins.  Heartrate remained high (90s) with palpitations rest of the morning and into the afternoon.  This was the highest my resting heartrate remained that high since Tuesday 12-7, but lower than the consistent 100 when this first began.  Had oatmeal for breakfast which seems to be a trigger.  Took propranolol at 1:30 to bring resting heartrate back down.