Thanks for posting your query.
is highly unlikely to cause a trouble like this.
You may be having dizziness
due to a surge in BP or a low BP
under the effect of antihypertensives or if you have a cold
episode then such problem may arise due to viral infection also.
I would advise you to get the BP checked by a physician and if required modify/add new the drugs.
Hope I have answered your query.
If you have any questions I will be happy to answer.
Please close the query if you have no other questions.
Wish you a good health.