When the Pfizer vaccines were first rolled out in the UK, healthcare workers suffered severe allergic reactions and this prompted the UK government to issue a public health warning on allergies to certain ingredients in the vaccines: https://www.reuters.com/article/health-coronavirus-britain-vaccine-idUSKBN28J1DK
There are also many reports of anaphylaxis in vaccine recipients in the US: https://jamanetwork.com/journals/jama/fullarticle/2776557
Also after the AstraZeneca vaccine reported to cause blood clots in recipients, European nations such as Denmark, Norway, Germany, France, etc. pulled the vaccine from use: https://apnews.com/article/germany-suspends-astrazeneca-vaccine-blood-clotting-0ab2c4fe13370c96c873e896387eb92f
If you do decide to get the vaccine I respect your right to make that decision but you should also make an informed decision by consulting your doctor, the UK, US, Canada and other governments warned of allergies so that is at least a concern, if you do suffer from any sort of reaction, you do have a right to inform your doctor.