Time to go with a hosting company who will discuss problems & work with you to find a solution rather than pulling the rug away from under your feet. Which company is it?
Do you have a full file & database backup?
I always have a snippet of code in my footer which displays the number of queries if I am logged-in:
<?php if (is_user_logged_in()) { ?>
| <?php echo get_num_queries(); ?> queries |
<?php timer_stop(1); ?> seconds
<?php } ?>
This is good for troubleshooting; I once briefly tried a plugging which I was able to see generated an extra 200 queries on each page load
Running a copy of the site locally on xammp will enable you to troubleshoot excessive queries without upsetting a hosting company