Can anyone relate, help or advise please!

My wife has been having irregular periods for 3 cycles in a row now. We are both not vaxxed and never taken a bs test but we work around others who are and both have vaxxed family members that we see on regular basis.

For the past 3 cycles she has had a considerably heavier flow for a longer period of time. PMS symptoms are more severe such as severe cramping, headaches and back pain even sometimes starting on day 4-5 of her cycle which is extremely rare for her.

She has always had a light/short cycles in the past. Having heavy flow on day 3-4 is unheard of for her and at this point we are looking for answers.

I’ve been here for a very long time and I know this has been discussed before throughout the pandemic and vaccine/weapon roll out. Can any of you relate, advise or lead us to some answers?
Thank you all!