For BP I have never had any issues when running 2000-3000mg of hawthorn a day. Also if you retain a ton of water from the test the BP spike could be related to estro. I have recently started using DIM(100mg AM/PM) and I like it better than the AI's I have used in the past. No nipple puffiness or sensitivity. Not saying this is going to be sufficient for someone who goes heavy with the doses but works very well for me.
One last idea if you want to minimize sides of the test is to go with small daily or EOD doses, credit to Emeric for this type of administration. I have used EOD at 50mg cyp with my HRT and did not loose a step. Was it as strong as high doses, no. Did I loose any strength or size, no. The gains still came just slower, and let's be honest I am not going anywhere and have plenty of time. Take care and be safe.