wp_query for custom taxonomy term

I have a custom post type named ‘tours’ and custom taxonomy named ‘tourtypes’ so i can categorize it into terms like ‘cultural tour’, ‘sports tour’ etc.

Need to tell u that i’m not the original author of this theme and i try to customise it so that instead of outputting all ‘tours’ post, user can also choose which tour category they want.

in the theme template taxonomy-tourtypes.php this is part of the code to display the term title:

<?php $terms = get_the_terms($post->ID, 'tourtypes'); foreach ($terms as $term){ ;?>
<h2><?php echo $term->name; ?> Category</h2><?php } ;?>

but i’m not sure whats wrong when trying to query the selected term

<?php
$paged = get_query_string_paged();
$counter = 1;
$termg = wp_get_post_terms($post->ID, 'tourtypes', array("fields" => "all"));

$posts_per_page = get_option('theme_show_portfolio_items');
	if($posts_per_page == "") {
		$posts_per_page = get_option('posts_per_page');
	}

$my_query = new WP_Query(array('post_type' => 'tours', 'tourtypes' =>'$termg' ,'paged' => $paged, 'posts_per_page' => $posts_per_page));
	if ( $my_query->have_posts() ) : while ( $my_query->have_posts() ) : $my_query->the_post(); ?>
		<?php $image = get_post_thumb($post->ID,280,180); ?>
			<li class="image">
			<a href="<?php the_permalink();?>"><img src="<?php echo $image['src'];?>" alt="<?php the_title();?>" /></a>
			<h2><a href="<?php the_permalink();?>"><?php the_title();?></a></h2>
			<?php
				global $more;    // Declare global $more (before the loop).
				$more = 0;       // Set (inside the loop) to display content above the more tag.
			?>
			<?php add_filter('the_content', 'remove_images'); ?>
			<?php add_filter('the_content', 'remove_objects'); ?>
            <?php the_meta(); ?>
			<p><?php the_content(__('Book Now' , 'oxygen')); ?></p>
			</li>

			<?php if($counter%3 == 0) { ?>
					<li class="spacer"> </li>
				<?php } ?>
				<?php $counter++;?>

				<?php endwhile; else: ?>
				<?php endif; ?>

I think i dont use proper code at the wp_query. anybody can point me to the right code?