had 5 significant very large, bloody noses and blood clots with those; had 5 significant very large, bloody noses and blood clots with those; bit of weakness; significant cramping in the legs, both legs, more so in the left leg; numbness and tingling in the arms, both arms, more so in the left arm; numbness and tingling in the arms, both arms, more so in the left arm; cramping in the stomach area/cramping in the abdomen; booster; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 31 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 18Dec2021 (Batch/Lot number: unknown) at the age of 31 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Craniocerebral injury" (unspecified if ongoing), notes: Verbatim: Traumatic brain injury; "Methergine allergy" (unspecified if ongoing). There were no concomitant medications. Vaccination history included: Bnt162b2 (Dose: 1, Route, Anatomical Location: thinks the right arm), administration date: 16Apr2021, when the patient was 31 years old, for COVID-19 immunization; Bnt162b2 (Dose: 2, Route, Anatomical Location: thinks right arm), administration date: 07May2021, when the patient was 31 years old, for COVID-19 immunization. The following information was reported: THROMBOSIS (medically significant), EPISTAXIS (non-serious) all with onset 21Dec2021, outcome "unknown" and all described as "had 5 significant very large, bloody noses and blood clots with those"; IMMUNISATION (non-serious) with onset 18Dec2021, outcome "unknown", described as "booster"; ASTHENIA (non-serious) with onset 21Dec2021, outcome "not recovered", described as "bit of weakness"; MUSCLE SPASMS (non-serious) with onset 21Dec2021, outcome "not recovered", described as "significant cramping in the legs, both legs, more so in the left leg"; HYPOAESTHESIA (non-serious), PARAESTHESIA (non-serious) all with onset 21Dec2021, outcome "not recovered" and all described as "numbness and tingling in the arms, both arms, more so in the left arm"; ABDOMINAL PAIN UPPER (non-serious) with onset 21Dec2021, outcome "not recovered", described as "cramping in the stomach area/cramping in the abdomen". Therapeutic measures were not taken as a result of thrombosis, immunisation, epistaxis, asthenia, muscle spasms, hypoaesthesia, paraesthesia, abdominal pain upper.  Patient's bloody noses stopped on 30Dec2021 but was still experiencing a bit of weakness. She had also experienced significant cramping in the legs and numbness and tingling in the arms. She was also experiencing cramping in the stomach area. It was clarified that all of these symptoms mentioned, the weakness, the significant cramping in the legs, numbness and tingling in the arms and cramping in the stomach area all started around the same time on 21Dec2021. It was also reported that it shifted beyond those normal side effects of the booster shot. She stated that the cramping in the abdomen was different than a stomachache and she couldn't really explain. It was also confirmed that vaccination was given at 2:30 in the afternoon. Patient had no prior vaccinations and no adverse events prior vaccination. Caller stated she had allergic reactions or side effects to most medications. She stated that she had one experience with Methergine and ended up going blind from it. She was able to regain most of the vision. She stated that the medication had only been in her system for 2 days. She stated that with a lot of these medications, the symptoms are very severe. She stated that they are very rare side effects she had with these medications and states that it is not a specific ingredient that the doctor had been able to find or say it is in other medications.  The lot number for bnt162b2 was not provided and will be requested during follow up.